you are a big help meaning in English
你帮了大忙了。
Examples
- Thank you for helping us move . you were a big help
谢谢您帮我们搬家，这可帮了我们一个大忙。 - You were a big help to me and i hope i can repay you some day
（你真是帮了大忙，我希望有机会报答你。 ） - Hey ! you are a big help
嘿！你阵是帮了个大忙。 - Hey ! you are a big help
嘿！你真是帮了大忙。 - You were a big help to me
你帮了我很多忙