我认为最有帮助的发明是电灯泡的翻译：I think the most useful is the invention of light bulb 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

I think the most useful invention of the electric light bulb

I think the most useful is the invention of light bulb

I thought most has the help invention is the electric lamp bulb

I think the most helpful invention is light bulb

I think the most useful is the invention of light bulb