Dibutalin
[建] N-二级丁基-4-三级丁基-2,6-二硝基苯氨
🗣️ 情景例句
When was the last time?
最近一次是什么时候？
It is too late to come with the water when the house is burnt down.
马后炮。
Sure! When do you want it?
当然可以！您什么时候要？