Ostium frontale
[医] 额窦口
🧩 词语组成解析
n. 口, 门, 孔\\n[医] 口, 门口
🗣️ 情景例句
A very good question.
一个非常好的问题。
When the weather is hot, we turn on the air conditioner.
天热的时候就开空调。
But this was before Annie Sullivan came to stay.
但是，这都是安妮·莎利文来住下之前的事了。