Sinus
n. 窦, 静脉窦, 凹陷处
✅ 同义词
📖 牛津释义
sinus
n
cavity in a bone, esp any of the air-filled spaces in the skull that are connected to the nostrils 窦（骨骼中的空穴, 尤指颅骨中的）.
🏥 医学释义
窦房结，窦
🗣️ 情景例句
Will it cost for the transfer?
转车要钱吗？
I imagine you are tried after your trip.
我想你旅行回来一定疲惫不堪吧。
Is it a black one?
是快黑的吗？