Diethylnitrosamine
二乙基亚硝胺
🗣️ 情景例句
What floor is the shoe department on?
鞋部在几层？
You can't count on Tom being punctual.
你不要指望汤姆会守时。
Rays from the sun excite and energize the atmosphere of the earth,
太阳光刺激了地球的大气层，并给予它能量；