帮忙翻译：只要我们想要的东西，妈妈都舍得花钱。可是她却不舍得为她自己买化妆品

As long as it was something we want, mum would like to pay for that, yet she wouldn't spend a penny on cosmetics for herself.

My mother will pay for anything we want yet never buys anything even cosmetics for herself.

假如生活欺骗了你

As long as we want, mother spends freely. But she was not willing to buy cosmetics for herself