casual wear的用法和樣例：
例句
- You're welcome to wear casual clothes to the party.
我們歡迎你穿便服赴宴。 - "A science fiction cannot not be regarded as a mere entertainment, but in fact it tells the reader much more."
"科幻小說(shuō)不能簡(jiǎn)單地看成是供消遣的，而實(shí)際上它給讀者展示更深刻的內容。" - He alternates between casual and elegant attire.
他在便裝和套裝中做出選擇。 - It's not appropriate to wear informal clothes on formal occasions.
在正式場(chǎng)合穿便裝不合適。
