Nitrador
二硝甲酚
🗣️ 情景例句
Well, don't work all night.
好啦， 别通宵工作。
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。
Man-made satellites have been sent up into space by many countries.
许多国家都成功地把人造卫星送入了太空。