quiet ['kwaɪət] 词频1 词根: qui

adj. 清静的;僻静的;不起眼的;不激动的; vt.& vi. 安静下来，使…安静，平静; vt. 减轻（病痛、疑虑、恐惧等）;[法律]确定（产权等）; prep. 克制的，稳重的，不张扬的; n. 宁静;寂静; adv. 安静地，平静地;

💡 qui “静止,平静”

近义：hush, appease, lull, assuage, mollify, pacify 反义：preoccupy, rattle, trouble, unnerve, upset, worry

often ['ɔf(tə)n] 词频1

adv. 常常;经常;时常;再三;

💡 十(ten)有八九的(of)， 经常的

"Sleep has often been thought of as being in some way analogous to death."

近义：manyfold, oft, oftentimes, repeatedly, usually, offtimes 反义：infrequently, occasionally, seldom, sometimes

tell [tel] 词频1

vt. 告诉，说;辨别;吩咐;讲述; vt.& vi. 分辨，辨别;告诉，吩咐;泄漏;保证; vi. 泄密，告发;（颜色、声音等）显示;识别; n. [考古学]（古代村落遗址堆积而成的）台形土墩;[方言]讲的话;谈话;传闻;

💡 他告诉（tell）我，他哥哥很高（tall）

"He adjured them to tell the truth."

近义：maintain, assert, asseverate, mention, assure, name 反义：hide, mask, occult, shield, shroud, veil

keep [kip] 词频1

vt. 保持;保留;遵守;阻止; vi. （食品）保持新;保持健康; n. 保持，保养;供养，抚养;生活，生计;饲料；牧草;

"Social services keep lists of at-risk children ."

近义：hold, husband, maintain, reserve, retain, save 反义：transfer, cede, give, transgress, trespass, violate