Diethylnitrosamine
二乙基亞硝胺
??? 情景例句
I was so tired
我太累了
Mr. President, ladies and gentlemen, and all the distinguished guests.
主席先生，女生們先生們，各位貴賓們。
In this way self-confidence grows, first from mastering a subject, then from being able to take about it.
這樣，你自信心不斷增強，先是因為掌握一門學問，接下來是因為能夠就此發表見解。