Keratomileusis
角膜磨削术
🗣️ 情景例句
What did you mean by well ...?
你说 嗯…… 的意思是什么？
I've had no time to prepare for this meeting, so I'll have to play it by ear.
我没有时间来准备这次会议，所以只好有什么说什么。
May I help you?
我能帮忙吗？