Easy: simple, effortless, no trouble, painless, plain sailing, uncomplicated, undemanding, unproblematic, a piece of cake (informal), child’s play (informal),…

　　Clear: obvious, apparent, blatant, comprehensible, conspicuous, distinct, evident, manifest, palpable, plain, pronounced, recognizable, transparent, intelligible, lucid, plain, understandable, uninvolved, simple, …

　　Direct: bald, basic, frank, naked, plain, sincere, stark, straightforward, candid, forthright, outspoken….

　　Difficult: hard, tricky, complicated, complex, intricate, involved, knotty, perplexing, puzzling, thorny…

　　Angry: annoyed, cross, displeased, enraged, exasperated, incensed, infuriated, irate, mad (informal), livid (informal), berserk, outraged, resentful...

　　Dangerous: perilous, breakneck, chancy (informal), hazardous, insecure, precarious, risky, unsafe, vulnerable

　　动词

　　Think (that): hold the (opinion/ belief/ position/stand point/idea) that, assume, believe, deem, reckon, argue, maintain, suppose, conceive, insist, be convinced, to my knowledge, personally, from my personal perspective, as far as I am concerned, from my point of view, from my angle, consider, conceive, perspective...

　　Show: convey, reveal, express, corroborate, justify, imply, verify, clarify, signify, exemplify, illuminate, substantiate, demonstrate, elucidate, denote, characterized as, instruct, display, disclose, indicate, means, explain, give an/a example (reason, explanation) of, bear out, point out, point toward…

　　Know: realize, comprehend, identify, distinguish, discern, notice, perceive, recognize, see, understand, figure out, be acquainted with, be familiar with,

　　Get: acquire, attain, acquire, achieve, obtain, gain “学习” 不用learn

　　Suggest: have a proposal in,

　　Increase: magnify, expand, proliferate, mushroom, improve, enhance, advance…

　　Impress: affect, inspire, engrave on, imprint of,

　　Influence: impact, affect, guide, sway,

　　Stop: halt, cease, conclude, desist, end, pause, put an end to, quit, refrain, shut down, terminate…

　　Make: create, assemble, built, construct, form, manufacture; fore, cause, compel, constrain, drive, impel, induce, oblige, prevail, upon, require…

　　Give: present, award, contribute, deliver, donate, grant, hand over, hand out, provide, supply

　　Break：separate, burst, crack, destroy, disintegrate, fracture, fragment, shatter, smash, snap

　　Destroy: ruin, raze, annihilate, crush, demolish, devastate, eradicate, shatter, wipe out, wreck, obliterate, weaken, undermine…

　　Happen: occur, come about, come to pass, develop, result, take place, transpire

　　名词

　　Problem: issue,question, case, trouble, difficulty, dilemma.

　　Meeting: conference, discussion, assembly, conclave, congress, convention, gathering session, assignation, encounter, confrontation, argument, controversy…

　　Study: learning, application, lessons, reading, research, school work, examination, analysis, consideration, contemplation, inspection, investigation, knowledge,scholarship…

　　Advantage: benefit, dominance, precedence, profit, superiority, merit…

　　Disadvantage: shortcoming, weakness, inconvenience, drawback, deficiency, flaw, handicap (also v. 妨碍), downside, limitation.

　　Life: existence, conduct, life style, way of life

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