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
vi. 生存;居住;生活,过活;在生活中得到享受;
vt. 经历;度过;
"We cannot live without water."
没有水我们不能生存。
近义:last, reside, be, sojourn, subsist, dwell
反义:perish, vanish, part, croak, decease, depart