1 my fingers are all thumbs笨手笨脚A:Hi,Jenny can you come and lend me a hand? B:Sure.What is it? A:I can't tie up the ribbon round the parcel.You know my fingers are all thumbs. B:OK.Let me help you. A:喂,珍妮!你能过来帮我一下吗? B:当然可以。什么事? A:你知道我笨手笨脚的,怎么也不能把绸带绑在包裹上。