be on the lookout for 留心观察；留心某事；正在寻找例句筛选1.When you review your table structures, be on the lookout for repeatinggroups.复查表结构时，要密切注意重复的组。2.She gave me a hard look. Truly, as if she was supposed to be on thelookout for people like me.她给我一个为难的表情.确实，就好像她应对我这种人小心才对。
