Sinus
n. 窦, 静脉窦, 凹陷处
📖 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).
🗣️ 情景例句
What do you often do in your spare time?
你在业余时间都干些啥?
There were English cars, French cares, German cars.Italian cars.American cars and Japanese cars.
有英国、法国、德国、意大利和日本的汽车。
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