certain的反义词有：uncertain, doubtful, doubtful, uncertain。adj.certain的反义词（无疑的;可靠的）：uncertain, doubtful。certain的反义词（其他释义）：doubtful, uncertain。...

v.抑制，克制，戒除( refrain的现在分词 )...

The teacher training college put up a plaque to the college's founder.那所教师培训学院为该学院的创立者立了一块纪念牌匾。You could never eliminate risk, but preparation and training could attenuate it.风险不可能完全消除，但可以通过防范和培训来降低。The emphasis is ...

mainly的近义词/同义词有：the, in, especially, above, predominantly, overall, whole, principally, effectively, particularly, general, all, primorily, on, substantially, mostly, generally, primarily, main, essentially, chiefly, usu...

Varese Ligure is a small town in mountainous country east of Genoa.瓦雷泽古雷是位于热那亚以东山区的一座小城。Nowadays tractors are used even in remote mountainous regions.现在连偏僻的山区也用上了拖拉机.The storm heaved the sea into mountainous weaves.风暴中海面...

train的近义词/同义词有：condition, teach, educate, drill, exercise, groom, foster, discipline, prepare, bring, rear, nurture, direct, cultivate, up, practice, cars, railroad, string, column, file, series, succession, sequence, pr...

gain的近义词/同义词有：acquire, earn, get, obtain, receive, secure, look, pick, make, up, come, along, progress, improve, advance, benefit, advance, up, behalf, plus, benefit, receive, take, blessing, pick, improve, advantage, ac...

contain的近义词/同义词有：hold, enclose, comprise, include, of, involve, consist, control, curb, restrain, confine, include, restrain, comprise, involve, seat, control, embrace, consist, siege, embody, hold, curb, comprehend, cov...

n.压力，拉力，张力，拉伤，扭伤，个性特点vt.拉伤，损伤，尽力，竭力，使不堪承受，过滤vi.拉紧，用力拉，尽力，竭力...

uncertain的近义词/同义词有：changeable, speculative, insecure, precarious, unsure, doubtful, unpredictable, bewildered, confused, erratic, unsure, adrift, debatable, doubtful, flighty, risky, dispossessed, ambiguous, equivocal, u...

I was going to sand down the chairs and repaint them.我打算用砂纸把椅子打磨光洁后重新上漆。So that we can repaint it.好让我们可以重新粉刷.I suppose you repaint the apartment when someone moves in.我想如果有人搬进来住,你们会把房子重新粉刷一下的....

vain的近义词/同义词有：futile, ineffectual, unsuccessful, fruitless, egocentric, conceited, haughty, lofty, self-centered, proud, boastful, egotistical, fruitless, consequential, lofty, futile, smug, boastful, unsuccessful, worth...

bargain的近义词/同义词有：sale, agreement, contract, agree, sale, alliance, operation, contract, traffic, understanding, pact, covenant, intervene, engagement, trade, convention。n.bargain的近义词（买卖,交易）：sale。bargain的近义词（协议）：agreement...

plain的反义词有：intricate, abstruse, showy, fancy, devious, fanciful, lovely, complicated, wonderful, gorgeous, dim, fanciful, complex, complicated, splendid, conspicuous。adj.plain的反义词（清楚的;直率的;简朴的;不漂亮的）：intricate, abstruse, s...

now and again的音标：now and again的英式发音音标为：[nau ænd ə'ɡen]now and again的美式发音音标为：[naʊ ənd ə'ɡɛn]...

The state of their marriage has been put into the public domain.他们的婚姻状况已公开。It is outrageous that the figures are not in the public domain.让人愤慨的是那些数字并未公开。Is the domain name already registered or still available?该域名已经被注册还是...

懦弱...

detain的第三人称单数（三单）为：detains...

remain的反义词有：perish, migrate, wander, go, quit, perish。vi.remain的反义词（剩下;继续存在）：perish。remain的反义词（其他释义）：migrate, wander, go, quit, perish。...

gain的现在进行时为：gaining...

main的音标：main的英式发音音标为：[meɪn]main的美式发音音标为：[men]...

main的近义词有：chief, principal, main, major, leading, capital, foremost, primary。下面这些形容词均含有"首要的，主要的"的含义：chief：指人时，表同类中职位最高，权力最大；指物时，表同类中最重要，价值最高。principal：用于人时，指地位优于其他人；用于物时，指该物在大小、重要性等方面优于他物。main：通常只用于物。指在一定范围内，某物的重要性、体积或力量...

vt.热情款待，使有兴趣，娱乐，抱着，怀有vi.热情款待，娱乐...

Such attitudes are valueless unless they reflect inner cognition and certainty.这种态度如果不能反映内心的认知和把握就毫无价值。Her return to the team now seems a certainty.她的归队现在似乎已成定局。I know for a certainty that the company has been bought up....

n.链接，链锁，丈量，编链，挂链...

If you're not satisfied with the life you're living, don't just complain. Do something about it.对于现况的不满，不能只是抱怨，要有勇气作出改变。Faculty members complain that their students are unprepared to do college-level work....

He felt constraint in her presence.他在她面前显得局促不安.We obeyed, but under constraint.我们服从了, 然而是被迫的.The boy felt constraint in her presence.那男孩在她面前感到局促不安....

heatretainer的音标：heatretainer的英式发音音标为：[hi:tri:'teɪnər]heatretainer的美式发音音标为：[hitri'teɪnər]...

paints的音标：paints的英式发音音标为：[peɪnts]paints的美式发音音标为：[peɪnts]...

retraining的音标：retraining的英式发音音标为：[ˌri:'treɪnɪŋ]retraining的美式发音音标为：[ˌri'treɪnɪŋ]...