Tetrachlorophenolphthalein
四氯酚酞
🗣️ 情景例句
There's nothing wrong with hard work.
刻苦没错。
The dumped products
大批的垃圾
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。