英语语法分析

These nonrestrictive units had concrete floors on an interior steel frame.

这些非抗震单元在内部为钢构架上是水泥地板。

In the nonrestrictive sentence, the store honored all the complaints, all of which were less than 60 days old.

而在非限制性从句中，商店处理了所有的投诉，这些投诉都是60天内发生的。