Watson's operation
[医] 瓦生氏手术(睑内翻手术)
🧩 词语组成解析
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
How long have you been studying English?
你学了多长时间的英语了？
Future historians will be in a unique position when they come to record the history of our own times.
未来的历史学家在写我们这一段历史的时候会别具一格。