random
accidental
casual【导航词义:偶然的】
random adj. 随机的,随意的
〔辨析〕指无计划或目的地选择或发生的。
〔例证〕
a random sample of 100 families
随机抽样的100个家庭
The survey was conducted based on a random selection of women who were in the shop.
在店内随机选择了一些女性进行了调查。
accidental adj. 意外的,偶然的
〔辨析〕指计划外或无意间发生的。
〔例证〕
In fact, their meeting was not accidental.
事实上,他们的相遇并不是偶然的。
The company lost its advantages due to an accidental leak of its designs.
由于设计方案意外泄漏,该公司失去了优势。
casual adj. 碰巧的,偶然的
〔辨析〕指随意、并无计划的,只作定语。
〔例证〕
She first heard of his name in a casual conversation.
她在一次偶然的谈话中第一次听到他的名字。
The professor made some casual remarks about his paper.
教授对他的论文随口点评了几句。