Valvulae semilunares aorta
[医] 主动脉半月瓣
🗣️ 情景例句
The problem is that I'm a photographer, not an editor.
问题是我是一个摄影师 不是一个编辑。
All products have to pass strict inspection before they go out.
所有产品出厂前必须要经过严格检查。
Police are wary of itinerants who cannot be traced to a recognized camp boundary or to four walls.
警察则对那些查不出有固定营地或住处的游荡者保持警惕。
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