it's all or nothingused to say that unless something is done completely, it is not acceptable 要么全部，要么全不 Half-heartedness won’t do – it’s got to be all or nothing. 三心二意是不行的——要么全力以赴，要么什么都不干。
it’s all or nothing• The deal is all or nothing.• It's all or nothing and being strong enough to take the flak if things go wrong.• It's all or nothing with her.
→ it’s all or nothing at all1(9)