Dihydroxyphthalophenone
酚酞
🗣️ 情景例句
Well, in 1919.
是的，在1919年。
I don't think that's at all funny.
我觉得那件事一点也不好笑。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。