Polymethine
聚甲炔; 聚甲炔
🗣️ 情景例句
I don't buy it.
我可不买你的账。
How much is this?
这个多少钱？
Aeroplanes have the reputation of being dangerous and even hardened travellers are intimidated by them.
飞机以危险而著称，连老资格的旅行者也怕飞机。