let-alone adj.放任(主義);不管的let's start from here 讓我們從這里開始let's see 讓我們看看let's say 比如說(用作插入語)let's play it by ear 讓我們隨興所至 我們見機(jī)行事吧 看情況吧let's just say 比如說let's wait awhile let's straighten it out let's see action let's go with pancho villa let's go fly a kite let's get laid let's fall to pieces together let you know 讓你知道let you go 讓你走let you down 讓你失望let well alone 就這樣好 別去動它let us say 比如說;假定;假如說let us down 讓我們失望let us 讓我們