Sinuses
湾, 穴, 窦, 窦房结, 窦道, 鼻窦, 瘘, 瘘管
🗣️ 情景例句
Could we make it tomorrow at nine?
明天9点怎么样？
What is done by night appears by day.
若要人不知，除非己莫为。
in the end, we stay at home and look after everything!
我们呆在家里来照看一切。