Oxyindole
羟基吲哚
🗣️ 情景例句
Have fun and be careful.
好好玩，但小心点哦。
We were waiting for a sight of the Queen.
我们正等着一睹女王的风采。
Rubbish, however, is only part of the problem of polluting our planet.
然而，垃圾只是我们这个星球的污染问题的一个方面。