look up意思是：向上看；改善；拜访某人；查找。用作动词，例句：You can look up this word in the vocabulary。你可以在词汇表里查这个词。When looking up suddenly，Henry saw a rainbow in the sky。亨利突然举目仰视时，发现天空有一道彩虹。

动词词组look up的意思还有“抬头看”、“改善”等。例如：The national economy is beginning to look up。国民经济正在开始好转。The worst is over now，and things are beginning to look up。最坏的景况已经过去，现在情况正在改善。

其他例句：He is looking up some information in the library。他正在图书馆里查找一些资料。You ought to look him up。你应该去看望他。I tried to look up the news in the newspapers。我试着在报纸上查找这条新闻。

Inflation is coming down；unemployment is coming down；things are definitely looking up！通货膨胀正在缓解，失业情形正在改善，形势确实已好转！Do look me up next time you are in town。下次进城请一定来看我。