Phenothiazinyl
吩噻嗪基
🗣️ 情景例句
Five, five, five, seven, five, three, two.
5557532。
It is an equal failing to trust everybody, and to trust nobody.
信任一切与不信任任何人，同样是弱点。
We endeavour to avoid the old, romantic idea of a gusher, which wastes oil and gas.
我们尽量避免使用陈旧天真的喷井方法，那样会浪费石油和天然气。