s. marked by blithe unconcern
s. without or seeming to be without plan or method; offhand
s. appropriate for ordinary or routine occasions
s. occurring or appearing or singled out by chance
a. 偶然的, 不经意的, 便装的
n. 临时工, 待命士兵
1. She wore a casual dress to the picnic.
她穿了一件休闲裙去野餐。
2. We had a casual meeting to discuss our plans.
我们举行了一次非正式会议来讨论我们的计划。
3. On weekends, I prefer to relax in casual clothes.
在周末，我喜欢穿着休闲衣服放松。