Angle(steel)
[化] 角鋼
??? 情景例句
I didn't mean to do that.
我并不想要那么做。
The more we study, the more we discover our ignorance.
學得越多，就越發覺自己無知。
He gets into the lift, and goes up to the twelfth floor.
他進入電梯，然后升至第12層。