Aortolith
[医] 主动脉石
🗣️ 情景例句
Good morning, sit down please.
早安，请坐。
He that would know what shall be must consider what has been.
欲知未然，须思已然。
examined a very large number of men working on aircraft carriers:
调查了许多在航空母舰上工作的人，