R.c.
abbr. (=reinforced concrete)【建】钢筋混凝土\\n
🗣️ 情景例句
You have a most unusual eye.
你有着极为不寻常的眼光。
Yes, she's free then.
可以，她那时有空。
Yes, but what are in the boxes?
哦，那箱子里是什么呢？