N,n'-dinitrosopentamethylene tetramine
[化] N,N'-二亚硝基五亚甲基四胺; 发泡剂H
🧩 词语组成解析
[医] 羟化四甲铵
🗣️ 情景例句
I can barely stand up by the end of a hard day.
辛苦了一天之后，我都站不起来了。
The truest politeness comes from sincerity.
真正的殷勤出于真诚。
where people first learned to write.
那里的人最早学会了写字。