【正文】 the heart is to a human)Big: gigantic, massive, colossal, enormous, immense, gargantuan, tremendous, titanic, giant, vast, large, huge, monster, bulky,many:+hurry (v): hustle, rush, make haste, tear, step on it, dash, get a move on, step on it, scoot.Easy: simple, effortless, no trouble, painless, plain sailing, unplicated, undemanding, unproblematic, a piece of cake (informal), child’s play (informal),…Clear: obvious, apparent, blatant, prehensible, 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, plicated, plex, 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連詞篇：（介詞，副詞）Firstly: previously, beforehand, foremost, initially, originally, formerly, principally, mainly, essentially, basically, generally, monly, universally, on the whole, fundamentally, to begin with, to start with, first of all, at the outset…Then: subsequently, afterward, thereafter, after that, secondarily, what is more, furthermore (further more)…Lastly: ultimately, eventually, in conclusion, to conclude, as a final point, last of all, last but not least, finally…Too: as well (句末)也, in addition, besides, moreover, additionally, to boot, excessively, also…And: plus, as well as, along with, in addition, bonus, with…Or: otherwise, if not, before, or else…So (adv): therefore, thus, consequently, accordingly, as a result, for that reason, hence, that’s whyBecause: as, due to, since, as to, in that, for the reason that, for, now that…But: however, moreover, nevertheless, nonetheless, on the contrary, on the other hand, 讓步although, even thought, though, even if, while, as, despite the fact that…Only: just, merely, barely, singly, solely, rarely…Without: excluding,Very: extremely, acutely, decidedly, deeply, exceedingly, greatly, highly, unmonly, profoundly, unusually…Actually: as a matter of fact, indeed, in fact, in point of fact, in reality, in truth, literally, truly …動詞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, po