一、详细释义：


adj.

偶然的


例句：

Even a casual observer could hardly have failed to notice the heightening of an already tense atmosphere.

即便是不经意的旁观者也一定已经觉察到本就紧张的气氛进一步加剧了。


例句：

To you it’s just a casual pursuit.

对你来说，那只是偶然的追求。


随便的，非正式的


例句：

I also bought some casual clothes for the weekend.

我还买了些周末穿的休闲装。


例句：

It's difficult for me to be casual about anything.

要我随便处事很难。


临时的


例句：

It became increasingly expensive to hire casual workers.

雇用临时工越来越贵了。


例句：

The following is just a casual list.

下面只是一个临时的列表。


二、词义辨析：


irregular,casual,informal

这些形容词均有“非正式的、非正规的”之意。 irregular指不按常规、固定模式或计划做事；或指不隶属于任何机构或组织。 casual指不太注意场合，仪表等，随意性强。 informal指语言、穿着等随便，也指不举行任何形式或仪式的活动。


三、参考例句：


Office casual typically means carefully tailored, well-made casual clothes.

办公室便装往往指的是裁剪精心、做工考究的便装。


He was wearing casual clothes.

他穿着便服。


We are only casual acquaintances.

我们只是泛泛之交。


He was wearing casual clothes.

他穿着便服。


Just casual wear would do.

便装就可以了。


He tried to appear casual.

他试图显得随便一点。


He endued with casual dress.

他穿着便服。


He acted as a casual browser.

他扮演一个闲逛的人。


Sneakers are casual shoes with rubber soles.

Sneakers是指一种胶底休闲鞋。


He pretended it was a casual meeting.

他假装那时一次意外相见。