Membranae synovialis
[医] 滑膜
🧩 词语组成解析
[医] 滑膜
🗣️ 情景例句
I went back for it, but the ferry was gone.
等我回去找的时候 船已经开走了。
I asked him to clean it for me, but he wouldn't.
我请他帮我清理，但是他不肯。
What's in that cave?
岩洞里会有什么？