Of.
[医] 法定的
🗣️ 情景例句
If the mood takes me, I'll head down the beach for an evening stroll.
如果心情不好，傍晚我会到海边散步。
How long is the ticket valid?
这车票有效期多久？
I told him the whole story. He laughed. You're great! I'm going to tell everyone.
我把整个事情都告诉了他。他笑了。“你真了不起！我要对大家说