Nitropolyurethane
硝基聚氨酯
🗣️ 情景例句
You're Peggy Pendleton!
是Peggy Pendleton！
See you later.
待会儿见。
It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.
不久，一架直升飞机飞抵飞机失事现场，来搭救这几个幸存者。