Nigerine
[化] N,N-二甲基色胺
🗣️ 情景例句
We get our friends to roll their sleeves up and get to work.
我们召集我们的朋友共同卷起袖子来做。
A colt you may break,but an old horse you never can.
小驹犹可练，老马最难驯。
One is the general atmosphere of secrecy in which it is carried out,
一是科研工作中普遍存在的保密气氛；