Triacetonamine
[化] 四甲基哌啶酮
🗣️ 情景例句
This is as useful as screen door on a submarine.
这毫无用处。
You must reap what you have sown.
种瓜得瓜，种豆得豆。
Squeezing through a cleft in the rocks, the pot-holers arrived at an enormous cavern, the size of a huge concert hall.
洞穴探险者从岩石缝里挤身过去，来到一个巨大的洞里，其大小相当于一个音乐厅。