Ketoestrone

酮雌(甾)酮

🗣️ 情景例句

Robots can be used for many tasks which are considered too dangerous for people to do.
机器人能完成许多对人类来说是很危险的任务。
A chain is no stronger than its weakest link.
链条的坚固程度取决于它最薄弱的环节。
After I had sat down, he said that business was very bad.
待我坐下后,他说生意非常不景气。
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