adj. 用过的;习惯于;二手的;旧的;
v. 使用( use的过去式和过去分词);常常,经常;
"Things ain't what they used to be."
现在情况不比从前了。
近义:outworn, worn, utilized, wonted, accustomed
反义:unused, unworn
adj. 自由的;免费的;免税的;空闲的;
adv. 免费地;自由地,无拘束地;一帆风顺地;
vt. 免除;释放;使自由;解救;
"I have given him a free hand in the matter."
我让他在这件事情上放手干.
近义:liberate, loose, save, deliver, emancipate, enfranchise
反义:immure, apprehend, incarcerate, jail, arrest, mew