Acetylizing
[機(jī)] 乙?；? 乙酰化作用
??? 情景例句
What has kept you so busy?
什么使你這么忙？
We don't go dancing very often.
我們不經(jīng)常跳舞。
You forget that I was a medical student once upon a time.'
你忘了我以前是學(xué)醫(yī)的了?！?/div>
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