Know something back to front 了如指掌 Episode 210909 / 09 Sep 2021 今日短语 表达 “know something back to front” 的意思是 “对某件事情了如指掌，或对某个话题有深入的了解”。 例句 You’re an expert in computing. You know computers back to front.

Helen 噢，原来是这个意思，当我们听到 know somewhere like the back of your hand，意思就是对什么地方非常了解就像对自己的手背那么熟悉一样。 以下是两个例句： Examples He knows the building like the back of his hand. She lived in village all her life, and ...