Trephining
[医] 环钻, 环锯
🗣️ 情景例句
No, not yet. What about you?
不， 还没有。你呢？
Yes,I have both your hat and your coat.
不，你的帽子和大衣都在我这里。
Will you help me plant this tree, please?
你愿帮着种这棵树吗？