Nnp
[医][=n-nitroso-piperidine]n-亚硝基替哌啶
🗣️ 情景例句
I got a college education by joining the military
我参军而上的大学。
He has been to America.
他曾去过美国。[表示曾经有过的经验]
Look! There's Meimei! She's very strong. She's lifting that ladder.
瞧！梅梅在那儿。她很强壮。她举着把梯子。