Dinitrofluorobene

二硝基氟苯

🗣️ 情景例句

In my opinion, winter in Beijing is not very cold.
我觉得北京的冬天不是特别冷。
If I have time tomorrow,I think I'll get a haircut.
如果我明天有时间,我认为我应该理发。
How did you decide that product was safe?
你怎样决定产品是安全的呢?
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🔤 更多 D 开头的单词

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