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
Everyone gets a turn, going counterclockwise,
每一个人按逆时针方向，
I put on my gloves.
我戴上了我的手套。
That's a good idea! Why not? Let's go.
好主意！为什么不呢？我们走吧。