Partes sacralis
[医] 骶部(副交感神经系)
🧩 词语组成解析
[医] 部, 部分
🗣️ 情景例句
I waited for you for about a quarter of an hour.
我等了你差不多一刻钟。
All is not at hand that helps.
有用的东西并不都是垂手可得的。
Did you know he was having an affair?
你知道他有外遇了吗？