负担不起

例句：

1. 1.We can't afford to buy a new car right now.
   我们现在买不起新车。
2. 2.She managed to afford the rent for the month.
   她设法付了当月的房租。
3. 3.He can't afford to eat out every night.
   他负担不起每晚出去吃饭的费用。