Em.
[医] 屈光正常, 正视眼
🗣️ 情景例句
We talk about him at dinner time.
我们吃晚餐时总谈起他。
No, I only wrote her one letter this year.
是的，今年我才给她写过一封信。
The play may begin at any moment.
戏随时都有可能开始。