Unicel
二亚硝基五亚甲基四胺(发泡剂)
🗣️ 情景例句
Thanks.
谢谢。
Habit is second nature.
习惯成自然。
The wooducutter was standing next to a fallen tree, with lots of small pieces of wood in front of him.
伐木工人正站在一棵倒下的树旁，他的前面有很多小片的木头。