Fhsas
(FHSA 的复数) 联邦危险物品法案(federal hazardous substances act)
🗣️ 情景例句
People don't ask unmarried people Why are you single?.
人们不会问未婚的人“你为什么不结婚?”。
I ask him to stay at home.
我要求他待在家里。
Now, this is the chemistry lab. Have you been in this lab before?
好啦,这是化学实验室。你们以前到过这个实验室吗?
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