Rack是什么意思啊

意思是支架、架子，例如：

1.I looked through a rack of clothes at the back of the shop.我看遍了挂在商店尽里面的一架子衣服。

3.She racked her brains, trying to remember exactly what she had said.她绞尽脑汁，想要回忆起她到底说过些什么话。