问题描述：
翻译,一句话.要人工.中译英.谢谢
Talk about the breakthroughs,not only was the building sturdy and fireproof but they were cheap to put up too.
我就是不知道后面这cheap to put up .啥意思- -~!
Talk about the breakthroughs,not only was the building sturdy and fireproof but they were cheap to put up too.
我就是不知道后面这cheap to put up .啥意思- -~!
问题解答：
我来补答展开全文阅读