Nitrosoguanidine
[机] 亚硝基胍
🗣️ 情景例句
And his name and the date are on the bottom.
他的名字和日期都在下面。
Never show the bottom of your purse or your mind.
钱包不露底，思想需保留。
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。