Epoxyethane

環(huán)氧乙烷

??? 情景例句

What are you working on?
你在做什么?
Would you help me remove the refrigerator?
能幫忙移一下冰箱嗎?
I'm sorry to hear that. I hope you're better now.
聽(tīng)說(shuō)你病 了,我心里很不好受。我希望你現(xiàn)在好些了。
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