Gyratrix
旋口涡虫属
🗣️ 情景例句
have become good friends, haven't you?
成了好朋友，不是吗？
This is the book that I promised to lend you.
这就是我答应借给你的那本书。
I don't know his number. Did you write it down?
我不知道他的电话号码。你记下来了吗？