let me give you a hand等于什么?

let me give you a hand等于什么? 5.let me give you a hand—— give me hand=give me a lift 还等于什么? could you give me a hand —Could you give me a hand? can you give me a hand? Could you please (give) me a hand? Would you please give me a hand? Give me a hand come on ,let me give you a hand._ NO,thanks I'm ok Bthat's a come on ,let me give you a hand._A NO,thanks I'm ok B.that's give me your hand和give me a hand有什么区别?