alonego it a'lone (informal)1.■do sth, especially sth difficult, without the help or support of others 单干，独立去做﹙尤指艰苦的事情﹚:Andrew decided to go it alone and start his own business. 安德鲁决定单干， 自己开业做生意。2.■leave/let sb/sth alone=leave/let sb/sth be 另见leave3.■let alone 另见let4.■let well enough alone=leave/let well alone 另见well