Sinuses
湾, 穴, 窦, 窦房结, 窦道, 鼻窦, 瘘, 瘘管
🗣️ 情景例句
But schedule another production meeting for tomorrow.
务必安排在明天举行另一次生产会议。
I can't say for certain off-hand.
我还不能马上说定。
Yes, they are.
对，这些是英语书。