Unreinforced
a. 无钢筋的, 不加固的, 未加强的
🗣️ 情景例句
No, there's more.
不，还有。
I'm sorry I'm late. I overslept again.
抱歉我来晚了。我又睡过头了。
They also have the disadvantage of being an expensive form of transport.
飞机另一个缺点是昂贵。