4周搞定2000+托福核心词
uncertainty = un(表否定) + cert(搞清) + ain(形容词) + ty(表名词) = 搞不清楚→不确定
certficate = cert(搞清) + fic(制造) + ate(表动词) = 搞清楚某件事→确认→发给证明书
amplifiier = ample(宽，大) + ify(…化) + ier(人或物) = 放大器；扩音器
amplify = ampl(大的) + ify(…化) = 放大，扩大
搞清楚→证明
certify
常考释义
The Council, which was founded in 1996, certifies fisheries that meet high environmental standards, enabling them to use a label that recognises their environmental responsibility.
MSC成立于 1996 年，它给符合环保的企业进行认证，这些企业可以有 MSC 环保商标的使用权。
来源于：剑雅7-Test4vt. 证明；证实；对…作出认证
They wanted to get certified as divers.
他们想获得潜水员资格证。
All three doctors are certified as addictions specialists.
三位医生都具有成瘾症专家的资质。
Mrs Simpson was certified dead.
辛普森太太被证实已死亡。
He received a piece of paper certifying the payment of his taxes.
他收到自己的一份完税证明。
That is your very own, certified, purebred, giant troll hunter.
这是专属于你的，经过鉴定的纯种巨人猎犬。
来自《仙境之桥》
图片源自网络
vt. 正式确诊…精神失常
The doctor certified him as clinically insane.
医生确诊他是临床精神病患者。
vt. 证明…合格；保证…符合标准
I certify that the facts written here are the truth.
我保证此处所写的实际情况句句属实。
vt. （银行）签署保付（支票）
The bank manager certified my cheque.
银行经理确认我的支票正确无误。
vi. 证明；保证；宣告
The president has certified that the project will receive at least $650m from overseas sources.
总统保证该项目将获得至少6.5亿美元的海外资金。
vt. 使确信；向…保证
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