Polymethine
聚甲炔; 聚甲炔
🗣️ 情景例句
I'll get the rest of the dinner.
我去把晚餐的其馀东西端来。
The president must have the approval of Congress to declare war.
总统若要宣战，必须获得国会的承认。
What are you doing?
你在干什么？