Microtoroid
微型环芯
🗣️ 情景例句
It's no use crying over spilt milk. What's done cannot be undone.
覆水难收。
What's your nationality?I'm a naturalized American.
我是加入美国国籍的美国人，你的国籍是什么？
I though so.Who's that beside her?
我也这样想。她旁边的那个人是谁？