senior ['sinɪɚ] 词频3 词根: sen

adj. （级别、地位等）较高的;资深的;年长的;<美>最高年级的; n. 上级;<美>毕业班学生;较年长者;地位较高的，资历较深的;

💡 sen年老+ior表示人→长辈

"Senior government figures must have acquiesced in the cover-up."

近义：elder, ancient, major, older, elderly, eldest 反义：juvenile, lad, minor, stripling, teen, teenager

effective [ɪ'fɛktɪv] 词频2 词根: fac

adj. 有效的;起作用的;实际的，实在的;给人深刻印象; n. [军]现役兵额，有生力量，精兵;

💡 ef出+fect做，制作 +ive形容词后缀 →做出来的 → 有效的

"The police bandobast was very effective."

近义：curative, curing, helpful, assistive, operating, operative 反义：incapable, ineffective, ineffectual, inefficacious, inept, inexpert

immediately [ɪ'midɪətli] 词频1

adv. 立即，马上;直接地;紧接地; conj. 一…就，即刻;

💡 immediate立即的 + ly...地 → 立即, 马上, 直接地

"You are under no compulsion to pay immediately."

近义：hereupon, instantaneously, instanter, instantly, outright, p.d.q. 反义：hereafter, hereinafter, later, next, posthumously, presently

position [pə'ziʃən] 词频1 词根: 放置

n. 位置，方位;地位，职位;态度;状态; vt. 安置;把…放在适当位置;给…定位;驻扎军队;

"Her unwillingness to answer questions undermined the strength of her position."

近义：lay, locate, marshal, place, posit, post 反义：layoff, leisure, lockout, joblessness

promoting

v. <正>促进( promote的现在分词 ); 提升; 推销; 使 （学生）升级