Sn
[计] 顺序号\\n[医] 锡(50号元素)
✅ 同义词
🗣️ 情景例句
Do you know the phone number of the restaurant?
知道那家餐厅的电话号码吗
It's been a bad day.
今天糟透了。
Many people have been out of work recently.
最近有许多人失业。