预订：book，booking，reserve，reservation
优点：advantage， positive
缺点：disadvantage， weakness，drawback，negative
环境：surrounding，environment，neighborhood，outside
房东：landlord，landlady，owner
入口：entrance，access
改变：change，alter，shift
休闲：leisure，recreation，entertainment
讨论： discuss，talk about，focus on，concentrate on，research on，look at
地点：where，position，spot，place，site
领域：area，field
活动：activity，do，study
带东西：equipment，belonging，take，carry
期刊：periodical，journal，magazine
注册：enroll，register，sign up for, take
学生：student, postgraduate, undergraduate,
布局：layout, plan, organize
动物：animal, creature, wildlife
植物：vegetation, plant, tree
最大值：maximum, up to, no more than
最小值：minimum, start at, no less than
多于：over, more than, above
最多：most, majority
低于：below, under pupil
旧的：old, original, used to
现在的：at present, currently, now
开端：early, the beginning of
自己的：own, private
提前：ahead of time, in advance
无额外收费：in the package, no extra charge, included in the price
初级的：basic, beginner, beginning, introductory
一个月：a month, 4 weeks, 30 days
两周：14 days, fortnight
1 天：one day, 24 hours
要求：require, request, must, ask
部分: part, proportion, *** percent
各种: a variety of, a range of, lots of, a large number of
重要: important, significant, crucial, essential
解决：Solve, deal with, cope with, handle, resolve, address, tackle
损害： Damage, hurt, injure, harm, impair, undermine, jeopardize
给与： Give, offer, render, impart, provide, supply, afford
培养：Develop, cultivate, foster
优势：Advantage, merit, virtue, benefit, upside, strength
缺陷：Disadvantage, demerit, drawback, downside, weakness
使迷惑：Puzzle, bewilder, perplex, baffle
重要的：Key, crucial, critical, important,
significant, vital, substantial, indispensable, imperative
认为：Think, believe, insist, maintain, assert, conclude, deem, hold, argue, be convinced, be firmly convinced, be fully convinced
保护：Protect, conserve, preserve
确保：Assure, ensure, guarantee, pledge
有害的：Bad, baneful evil, harmful, detrimental 要求：Request, demand, needs, requisition
消除：Eliminate, clear, remove, clear up, take away, smooth away
导致：Lead to, bring about, result in, cause, spark off, conduce to, procure, induce, generate
因此：So, therefore, thus, hence, consequently, as a consequence, accordingly, as a result, because of this, as a result of this
增长至：Grow to, rise to, increase to, go up to, climb to, ascend to, jump to, shoot to
降低至：Dip to, fall to, decline to, decrease to, drop to, go down to, reduce to, slump to, descend to, sink to, slide to
保持稳定：Level out, do not change, remain stable, remain still, remain steady, be stable, maintain the same level, remain unchanged, be still, remain the same level, stay constant, keep at the same level, level off, stabilize, keep its stability, even out
急剧地： Dramatically, drastically, sharply, hugely, enormously, steeply, substantially, considerably, significantly, markedly,
surprisingly, strikingly, radically, remarkably, vastly, noticeable
平稳地：Steadily, smoothly, slightly, slowly, marginally, gradually, moderately, mildly
宣称：Allege, assert, declare, claim
发生：Happen, occur, take place
原因：Reason, factor, cause
发展：Development, advance, progress
有益的：Useful, helpful, beneficial, profitable, rewarding, advantageous
影响：Influence, impact, effect
明显的：Clear, obvious, evident, self-evident, manifest, apparent, crystal-clear
占：Comprise, take up, account for, constitute, consist of, make up, occupy, hold, compose
与…相比：Compared with, compared to, incomparison with, in comparison to, by comparison with, by comparison to
对比而言：By contrast, in contrast, on the other hand, on the contrary, conversely
展示：Show, reveal, illustrate, demonstrate, depict, present, represent, describe
大约：Approximately, almost, about, around, nearly, roughly
波动：Fluctuate, go ups and downs, display a fluctuation, demonstrate a fluctuation
事实上：Practically, in practice, essentially, in essence, in reality, in effect, in fact, as a matter of fact, it is a fact that
换言之：Namely, that is to say, in other words, to put it like this, to put it differently, to put it from another way, to put it from another angle