If you are able to do something, you have skills or qualities which make it possible for you to do it.
例句
The older child should be able to prepare a simple meal...那个年纪稍大的孩子应当会做一顿简单的饭菜。The company say they're able to keep pricing competitive...该公司说他们能够使定价保持竞争力。
PHR-MODAL
(因有足够的自由、权力、时间、财力等而)可以…的,能够…的
If you are able to do something, you have enough freedom, power, time, or money to do it.
例句
You'll be able to read in peace...你就能安心地读书了。Have you been able to have any kind of contact?...你联系上了吗?
ADJ-GRADED
聪明能干的;能力出众的
Someone who is able is very clever or very good at doing something.
例句
...one of the brightest and ablest members of the government...政府里最聪明能干的成员之一They are bright, intelligent, able and confident.他们聪明又智慧,能干又自信。