able本身作形容词。able的名词ability。
ableadj.能；能够；有才智的；有才能的；
abilityn.能力；才能；本领；才智
I try to do my job to the best of my ability.
我尽全力做好我的工作。
His linguistic ability served him well in his chosen profession.
他的语言能力对他所选择的职业大有帮助。
A gentle form of exercise will increase your ability to relax.
和缓的运动锻炼会提高自我放松的能力。
