Formamine
甲醛胺, 六亚甲基四胺
🗣️ 情景例句
Call me John.
叫我， John。
How can it be so small and heavy?
这样小何以这么重呀？
The geologist needs to know what rocks the drill has reached,
地质学家需要知道钻头已经到达什么样的岩层，