Two years ago, Catherine decided to challenge the rules she grew up with and contacted a guy on Match.com whose profile caught her eye.

两年前，凯瑟琳决定违背她从小长大的家规，与Match.com（姻缘网）某个人物简介吸引住了她的眼球的男人接触。

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They don't want to make the challenge of meeting those new rules any tougher by expanding their loan books now.

他们都不想通过增加贷款来挑战更加严厉的新规则。

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They may not have verbs, nouns or past participles, but birds challenge the notion that humans alone have evolved grammatical rules.

它们可能没有动词、名词和过去分词，但是鸟类挑战只有人类演化出语法规则这一观念。

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Miller said the proposal is more likely to withstand a constitutional challenge because the rules are voluntary for candidates.

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Just understanding the rules is a major challenge, possibly even greater than altering practices to comply with the rules.

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Simonetta Sommaruga, Switzerland's justice minister, said adopting the new rules would be a "serious challenge" for Swiss business, but expressed confidence that the Alpine state's fabled competitiveness would not be undermined.

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