Leave (sb/sth) alone:To not interact with or bother someone or interfere with something.(别管；别碰) Usually used in spoken English to express that the speaker wants to “be quiet” or does not want others to interfere in his or her own affairs. (希望别人不要干涉某人某事)
EG: a. Don’t torment the cat. Leave it alone. b. I don’t want your help. Let me alone. c. Don’t argue about it. Let it be!
中文释义：leave (sb/sth) alone=let (sb/sth) alone=leave(sb/sth)be=let(sb/sth)be; 意为“不惹”“ 不碰”“不管”。另外alone也可替换为 by oneself=on one’s own 。如：leave me on my own; 口语中比较常用的地道表达有Leave me alone，Leave it alone!