Nitropolyurethane
硝基聚氨酯
??? 情景例句
It is not as difficult as it looks.
這并不像看起來那丟難。
I'm fishing at the lake.
我在湖邊釣魚。
They sighed and cried out for more water, but food and water were only given out once a day.
他們嘆息著，嚷著要水喝，而水和食物每天只發(fā)放一次。