What I need,just is a hug

What I need,just is a hug A simple happiness is just what I need. It is just what I need． I need a hug from you SB. I just want you a hug? I think what you also need is just a vacation.主语连词为什么用what啊? A mother is love your arms are always open when i need a hug Simple love is good,which is just what I need. just what i need 是什么意思? 帮我翻译:What you need is just a computer Give me a big hug .I need U that is just ( )i need.