Carboxyarsenazo
偶氮胂羧
🗣️ 情景例句
I was very sad indeed to hear about it.
听了这件事，我的确非常难过。
When did you go painting?
你什么时候去画画？
The towers are built on immense underwater platforms make of steel and concrete.
塔身建在巨大的水下钢盘混凝土平台上。