Polyethyleneimine

聚乙烯亞胺

??? 情景例句

I won't insist, but I think it's in your own best interests to quit smoking.
我不會堅持,但我想戒煙對你自己有好處的。
We should not impose our values and norms upon other people.
我們不應該把自己的價值和規范準則強加于別人。
What was it?
怎么啦。
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?? 更多 P 開頭的單詞

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