单词 | challenges |
释义 | challenge1 of 2verb chal·lenge ˈcha-lənj challenged; challenging transitive verb 1 : to dispute especially as being unjust, invalid, or outmoded : impugn new data that challenges old assumptions 2 a : to confront or defy boldly : dare he challenged his critics to prove his guilt b : to call out to duel or combat challenged his rival to a duel c : to invite into competition he challenged his brother to a tennis match 3 : to question formally the legality or legal qualifications of challenge a juror 4 : to arouse or stimulate especially by presenting with difficulties she wants a job that will challenge her 5 : to order to halt and prove identity the sentry challenged the stranger 6 : to demand as due or deserved : require an event that challenges explanation 7 : to administer a physiological (see physiological sense 2) and especially an immunologic challenge to (an organism or cell) intransitive verb 1 : to make or present a challenge when the appropriate moment challenged, he was capable of … leadership—C. H. Driver 2 : to take legal exception challenger noun challengeable ˈcha-lən-jə-bəl adjective challenge 2 of 2noun1 : a stimulating task or problem looking for new challenges 2 a : a calling to account or into question : protest a challenge to unauthorized use of public funds b : an exception taken to a juror before the juror is sworn a challenge of a prospective juror based on a specific cause or reason c : a questioning of the right or validity of a vote or voter d : a sentry's command to halt and prove identity The intruder fled at the sentry's challenge. 3 a : an invitation to compete in a sport He accepted my challenge to a game of chess. b : a summons (see summons entry 1 sense 2) that is often threatening, provocative, stimulating, or inciting specifically : a summons to a duel to answer an affront 4 : the act or process of provoking or testing physiological activity by exposure to a specific substance especially : a test of immunity by exposure to an antigen challenges 1 of 2 noun1 as in objections a feeling or declaration of disapproval or dissent there were no serious challenges to the legislative bill, so it passed easily Synonyms & Similar Words Relevance
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2 as in problems something that requires thought and skill for resolution the many challenges facing developing countries in the 21st century Synonyms & Similar Words
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challenges 2 of 2verb1 as in questions to demand proof of the truth or rightness of don't hesitate to challenge any statement that generalizes about people Synonyms & Similar Words
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2 as in dares to invite (someone) to take part in a contest or to perform a feat I challenge you to swim to the other side of the pond Synonyms & Similar Words
3 as in needs to have as a requirement having to put up with an overbearing boss challenges forbearance Synonyms & Similar Words
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