Hints:
本期學(xué)習(xí)的字源：cert=sure確信

Taiwan

單詞不需要大寫(xiě)，單詞與例句或不同詞條之間換行即可。
注解中詳細(xì)介紹了單詞的拆分與釋義，是學(xué)習(xí)字源分析的重中之重！一定記得聽(tīng)寫(xiě)后來(lái)看注解！
certain certainty I can't say with certainty, but I think you're right. certificate Without a death certificate, the insurance company refuses to pay the money. certification A foreigner needs some sort of certification to be able to work in Taiwan. certified My brother is a certified public accountant. ascertain Without a signature, it's hard to ascertain the authorship of this e-mail.
I can't say with certainty, but I think you're right. 我不是很肯定，但我想你是對(duì)的。 Without a death certificate, the insurance company refuses to pay the money. 沒(méi)有死亡證明，保險(xiǎn)公司拒絕付錢(qián)。 A foreigner needs some sort of certification to be able to work in Taiwan. 外國(guó)人要能在臺(tái)灣工作得有某種證明。 My brother is a certified public accountant. 我哥哥是位有證照的公設(shè)會(huì)計(jì)師。 Without a signature, it’s hard to ascertain the authorship of this e-mail. 因?yàn)闆](méi)有簽名，很難確定這封電子郵件是誰(shuí)寫(xiě)的。