Sinuses
湾, 穴, 窦, 窦房结, 窦道, 鼻窦, 瘘, 瘘管
🗣️ 情景例句
I'm not sure I'm up to it.
我不能肯定我是否能做得来。
It's a shame the weather is so bad.
真遗憾，天气如此糟糕。
How are you getting on with your English lessons?
你的英语课学得怎么样了？