不能，cannot 的常用口语形式

I can't believe you forgot our anniversary!
我真不敢相信你忘记了我们的纪念日！
She can't decide whether to go to college or start working.
她无法决定是去上大学还是开始工作。
The store is closed, so I can't buy that book tonight.
商店关门了，所以我今晚买不到那本书。
I'm sorry, I can't attend the meeting tomorrow due to a prior commitment.
对不起，我因为有先前的约定，明天不能参加会议。
He can't swim, so he's always afraid of going near deep water.
他不会游泳，所以总是害怕靠近深水区。
My phone is out of battery, I can't make any calls right now.
我的手机没电了，现在打不了电话。
It's raining heavily, so I can't go for a walk as planned.
雨下得太大了，所以我不能按计划去散步了。
I can't solve this math problem, it's too complicated for me.
这道数学题我解不出来，对我来说太复杂了。
She can't stand the heat, so she avoids going outside during summer afternoons.
她受不了热，所以夏天午后她都避免外出。
We can't afford to travel abroad this year; our budget is quite tight.
今年我们负担不起出国旅行，我们的预算很紧张。