Tetranitrocarbazol
[化] 四硝基咔唑
??? 情景例句
and we should remove them as soon as possible.
我們要盡快把它切除。
Nothing is so certain as the unexpected.
天有不測風云，人有旦夕禍福。
Don't touch anything unless your teacher tells you to.
除非老師允許，否則你不要動任何東西。