Sinuses
湾, 穴, 窦, 窦房结, 窦道, 鼻窦, 瘘, 瘘管
🗣️ 情景例句
Why don't you join us?
你何不参加入我们呢？
In all things, it is better to hope than to despair.
凡事抱希望为佳，不应悲观而失望。
Forget it.
算了吧。