R-acetamidopropyl thioacetate
[建] 硫代醋酸r-乙酰氨基丙酯
??? 情景例句
Sorry, but he is out at the moment.
抱歉,他現(xiàn)在出去了?
It's up to us to help those in need.
我們有責(zé)任幫助那些有困難的人。
I did not know the way to my hotel, so I asked a porter.
我不知道去飯店的路該怎么走,于是向一個搬運工打聽。
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