Phenylpyridine
苯基吡啶
🗣️ 情景例句
I always wanted to travel to Europe but I was afraid that language would be a problem.
我总想去欧洲旅游，但我又怕语言是个问题。
Coming events cast their shadows before them.
山雨欲来风满楼。
In the pioneering days, however, this was not the case at all.
然而，在登山运动的初期，全然不是这种情况。