Nitropolyurethane
硝基聚氨酯
🗣️ 情景例句
or the Museum of Natural History.
或自然历史博物馆。
Whom do you want to talk to?
你要和谁讲话？
Spiders are busy for at least half the year in killing insects.
蜘蛛至少有半年在忙于吃昆虫。