hollow

adj.

1. 中空的；空心的
   having a hole or empty space inside
   1. a hollow ball/centre/tube
      中空的球 / 中心部位 / 管子
   2. The tree trunk was hollow inside.
      这树干里面是空的。
   3. Her stomach felt hollow with fear.
      她吓得魂不附体。
2. 凹陷的
   sinking deeply into the face
   1. hollow eyes/cheeks
      凹陷的双眼 / 双颊
   2. hollow-eyed from lack of sleep
      因缺乏睡眠而双眼凹陷的
3. 沉闷回荡的；空响的
   making a low sound like that made by an empty object when it is hit
   1. a hollow groan
      低沉的呻吟
4. 无诚意的；虚伪的
   not sincere
   1. hollow promises/threats
      空洞的许诺；虚张声势的威胁
   2. a hollow laugh
      干笑
   3. Their appeals for an end to the violence had a hollow ring .
      他们要求停止使用暴力的呼吁并无诚意。
   4. His promise rang hollow (= did not sound sincere) .
      他的承诺听起来并不真诚。
5. 无真正价值的
   without real value
   1. to win a hollow victory
      取得表面胜利

noun

1. 凹陷处；坑洼处
   an area that is lower than the surface around it, especially on the ground
   1. muddy hollows
      泥泞的洼地
   2. The village lay secluded in a hollow of the hills (= a small valley) .
      村子坐落在一个幽静的小山谷中。
   3. She noticed the slight hollows under his cheekbones.
      她注意到他颧骨下面的轻微凹陷。
2. 洞；孔；围起来的空间
   a hole or a confined space in sth
   1. The squirrel disappeared into a hollow at the base of the tree.
      松鼠钻进了树根处的一个洞。

verb

1. 挖
   to make a flat surface curve in

1. ADJ 空的;空心的;中空的
   Something that is hollow has a space inside it, as opposed to being solid all the way through.
   1. ...a hollow tree.
      空心的树
   2. ...a hollow cylinder.
      中空圆筒
2. ADJ-GRADED 凹的;凹陷的
   A surface that is hollow curves inwards.
   1. He looked young, dark and sharp-featured, with hollow cheeks.
      他看起来很年轻，肤色黝黑，五官分明，双颊凹陷。
3. N-COUNT 树洞
   A hollow is a hole inside a tree.
   1. I made my home there, in the hollow of a dying elm.
      我在一棵快要枯死的榆树的树洞里安了家。
4. N-COUNT 凹陷处;低洼地
   A hollow is an area that is lower than the surrounding surface.
   1. Below him the town lay warm in the hollow of the hill.
      在他下方，小镇卧在温暖的山谷里。
   2. ...where water gathers in a hollow and forms a pond.
      在那里水积聚在低洼处形成了池塘
5. ADJ 空洞的;无用的;无价值的
   If you describe a statement, situation, or person as hollow, you mean they have no real value, worth, or effectiveness.
   1. Any threat to bring in the police is a hollow one.
      任何威胁说要叫警察来的话都是虚声恫吓。
   2. ...a hollow man who's coasted on charm for far too long.
      长久以来一直依靠个人魅力取胜的肤浅之人
6. ADJ （笑声等）虚伪的，不真诚的
   If someone gives a hollow laugh, they laugh in a way that shows that they do not really find something amusing.
   1. Murray Pick's hollow laugh had no mirth in it.
      默里·皮克的干笑里没有一点快乐。
7. ADJ （声音）空洞的，沉闷回荡的
   A hollow sound is dull and echoing.
   1. ...the hollow sound of a gunshot.
      空洞的枪响
8. VERB 使凹陷;使下陷
   If something is hollowed, its surface is made to curve inwards or downwards.
   1. The mule's back was hollowed by the weight of its burden.
      骡背被重负压得塌下了。
   2. ...her high, elegantly hollowed cheekbones.
      她凹陷有致的高颧骨

1. Directly following this treatment, he had a hollow, empty feeling in his stomach.
   这项治疗刚一结束，他就觉得胃里空空的。
2. I felt empty and hollow; defeated
   我感觉空虚无聊，充满挫败感。
3. The ersatz spontaneity of 'Sunday Love' sounds especially hollow.
   对《星期天的爱情》这首歌的即兴模仿听起来尤其空洞。
4. He looked young, dark and sharp-featured, with hollow cheeks.
   他看起来很年轻，肤色黝黑，五官分明，双颊凹陷。
5. I made my home there, in the hollow of a dying elm.
   我在一棵快要枯死的榆树的树洞里安了家。
6. Below him the town lay warm in the hollow of the hill.
   在他下方，小镇卧在温暖的山谷里。
7. Any threat to bring in the police is a hollow one.
   任何威胁说要叫警察来的话都是虚声恫吓。
8. Murray Pick's hollow laugh had no mirth in it.
   默里·皮克的干笑里没有一点快乐。
9. The mule's back was hollowed by the weight of its burden.
   骡背被重负压得塌下了。
10. Bake some big red peppers and hollow them out.
    将几个大红甜椒烤一烤，再把它们掏空。
11. Sedge is similar in appearance to grass but has a solid rather than a hollow stem
    莎草看上去和普通的草没什么两样，但其草茎是实芯的而不是空芯的。
12. His proud boast of leading 'the party of low taxation' has a hollow ring.
    他洋洋得意地吹嘘自己领导着“一个主张低税收的政党”，这听起来很空洞。
13. The rumpus has made all the optimistic statements about unity and harmony ring a little hollow.
    这一番吵闹使得所有关于团结和谐的乐观言论听起来都显得有几分空洞。
14. The government's promises were exposed as a hollow sham
    实情被揭穿了：政府的承诺原来是空洞的谎言。
15. The victory looks rather hollow. That takes nothing away from the courage and skill of the fighting forces.
    胜利只是表面的，可这丝毫无损于战斗部队的勇气和技术。
16. More gravel is needed to fill the hollow in the drive.
    需要更多的砾石来填平车道上的坑洼。
17. A iron bar is solid; a pipe is hollow.
    铁条是实心的，管子是空心的。
18. He can beat me hollow at mathematics.
    在数学上他造诣很高，我是望尘莫及。
19. This tree has been eaten hollow by worms.
    这棵树被虫子蛀空了。
20. Bamboo is light because it is hollow.
    竹子很轻，因为它中间是空的。
21. More gravel is needed to fill the hollow in the driveway.
    在车道的凹地上需要填更多的沙砾。
22. This time we'll beat them hollow.
    这一回咱们定要把他们打个稀里哗啦。
23. She looked old and thin with sunken cheeks and hollow eyes.
    她看上去又老又瘦，脸颊凹陷，眼圈发黑。
24. Woodpeckers inhabit hollow trees.
    啄木鸟栖息在中空的树中。
25. Bamboo is a sort of hollow plant.
    竹子是一种中空的植物。
26. The article is empty and hollow, devoid of substance.
    这篇文章写得空空洞洞，没有实质内容。
27. The words you say are very hollow.
    你讲的话很空洞。
28. The old willow tree has become hollow inside.
    古柳空心儿了。
29. All the units employ hollow burned-clay blocks as the basic raw material.
    所有构件都用空心陶土砖做基本原料。
30. A drum is hollow.
    鼓是空心的。

hollow sth↔out

1. 挖空（某物）；挖出（孔、洞）
   to make a hole in sth by removing part of it
   1. a hollow ball/centre/tube
      中空的球 / 中心部位 / 管子
   2. The tree trunk was hollow inside.
      这树干里面是空的。
   3. Her stomach felt hollow with fear.
      她吓得魂不附体。
2. 挖洞（成某物）
   to form sth by making a hole in sth else
   1. hollow eyes/cheeks
      凹陷的双眼 / 双颊
   2. hollow-eyed from lack of sleep
      因缺乏睡眠而双眼凹陷的

noun

1. a depression hollowed out of solid matter

   Synonym:    hole

2. a small valley between mountains
   1. he built himself a cabin in a hollow high up in the Appalachians

   Synonym:    holler

3. a cavity or space in something
   1. hunger had caused the hollows in their cheeks

verb

1. remove the interior of
   1. hollow out a tree trunk

   Synonym:    hollow outcore out

2. remove the inner part or the core of
   1. the mining company wants to excavate the hillside

   Synonym:    excavatedig

adj

1. devoid of significance or point
   1. empty promises
   2. a hollow victory
   3. vacuous comments

   Synonym:    emptyvacuous

2. as if echoing in a hollow space
   1. the hollow sound of footsteps in the empty ballroom

3. not solid
   1. a hollow wall
   2. a hollow tree
   3. hollow cheeks
   4. his face became gaunter and more hollow with each year