used

previously used or owned by another

以前由他人使用或拥有的

bought a secondhand (or used) car

买了一辆二手车

secondhand

employed in accomplishing something

用于完成某事

the principle of surprise is the most used and misused of all the principles of war"- H.H.Arnold & I.C.Eake

意外原则是所有战争原则中使用较多和滥用较多的原则

of persons

人数

taken advantage of

利用

after going out of his way to his friend get the job he felt not appreciated but used

他千方百计帮助朋友得到那份工作后，觉得不受赏识，反而利用了

exploited

ill-used

put-upon

victimized

victimised