Dinitrodiazophenol
二硝基重氮酚
🗣️ 情景例句
Frank, you can learn as we go.
Frank，我们玩， 你跟着学。
All things are difficult before they are easy.
凡事必先难后易。
They sighed and cried out for more water, but food and water were only given out once a day.
他们叹息着，嚷着要水喝，而水和食物每天只发放一次。