Paroxypropiophenone
对羟基苯丙酮
🗣️ 情景例句
So far so good.
到目前为止一切都好。
Light come,light go.
易得则易失；来得容易去得快。
Bob tries another pop star. This time he has more difficulty in getting through.
鲍勃试着想请另一个流行歌星。但这次电话比较难打通。