XXNHHHW是1句甚么话的缩写

应该是would的缩写。英文中的'd大多是would的缩写，比如sb. would like to do sth.缩略为sb.'d like to do sth.最为常见。不是would缩写的情况基本仅见于sb. had better do sth.缩略为sb.'d better do sth.。