adj.偶然的,临时的,随便的,非正式的
n.临时工人,[军]待命士兵,没有固定工作的劳动者,不定期领取救济金的人
I was wrong about it being a casual meeting.
我误以为这是个非正式会议。
A sharp dresser, Wyatt is never seen in casual clothes.
怀亚特衣着入时,从未有人见过他穿便装。
Lust now seems to be associated with casual sex and loose morals.
色欲如今似乎与性生活随便和道德放纵联系在一起了。