Nailing
a. 敲钉用的, 极好的, 出色的\\n[医] 插钉术
🗣️ 情景例句
Hmm. I can't remember.
嗯， 我记不起来了。
To fall down
掉下
Don't you think we should add a sentence here like this?
难道你不觉得我们应该在这儿加上一句话？