Dimethyletnanolamine
二甲基乙醇胺
🗣️ 情景例句
He accepted an offer of help.
他接受了援助的建议。
It's no use pumping a dry well.
徒劳无益。
Oh, dear! said Miss Yang. Are you sure you've lost it?
“哎呀！”杨小姐说，“你肯定你弄丢了？”