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
Do you follow me?
听懂我的意思没有？
If the sky falls,we shall catch larks.
天垮正好抓云雀；不要杞人忧天。
She came into my room yesterday.
昨天她到我房里来了。