Nitropolymer
硝基聚合物
🗣️ 情景例句
I've been thinking about you lately.
我最近一直在想着你。
He always forgets to wash behind his ears.
他总是忘记洗耳朵后面。
Are you going to be a sailor when you leave school?
你毕业后打算当海员吗？