Not being able to hear doesn't seem as bad to the rest of us as not being able to see.

对我们其他人来说，听不见似乎不像看不见那么糟。

《柯林斯英汉双解大词典》

There are fears that he will not be able to keep it up when he gets to the particularly demanding third year.

有人担心到了极其艰难的第3年他会坚持不下去的。

《柯林斯英汉双解大词典》

We had not been able to gain admittance to the flat.

我们还未能获得进入那所公寓的权利。

《柯林斯英汉双解大词典》

Now he would have to deal with the problems that presidents before him had not been able to solve.

VOA: special.2009.05.07

Now Milton may not be able to forget Homer, but he is able to correct Homer or to preempt Homer.

弥尔顿不能忘记荷马，但他可以改正荷马或者取代荷马。

耶鲁公开课 - 弥尔顿课程节选

But usually, if you are not able to work out something in terms of taking the exam at a different time,

不过通常情况下，你不太可能被允许换个时间参加考试，

临时抱佛脚？也做过 - SpeakingMax英语口语达人

We were not able to make the break and not able to score.

BBC: Laporte proud despite France loss

"I don't think about what I'm not able to do or not going to be able to do, " she said.

CNN: 'Brilliant Bus' shrinking digital divide

So in one sentence, it is a youngster who appears to be in his own world and not able to socialize, not able to understand.

NPR: Pediatrician: What Parents Should Know About Autism