challenge
- IPA[ˈtʃalɪn(d)ʒ]
英式
- a call to someone to participate in a competitive situation or fight to decide who is superior in terms of ability or strength；a task or situation that tests someone's abilities
- invite (someone) to engage in a contest；enter into competition with or opposition against
verb: challenge, 3rd person present: challenges, gerund or present participle: challenging, past tense: challenged, past participle: challenged
noun: challenge, plural noun: challenges
- 釋義
名詞
- 1. a call to someone to participate in a competitive situation or fight to decide who is superior in terms of ability or strength he accepted the challenge 同義詞
- ▪ a task or situation that tests someone's abilities the traverse of the ridge is a challenge for experienced climbers he took up the challenge of organizing a sports afternoon 同義詞
- ▪ an attempt to win a contest or championship in a sport he is desperate for a third world title challenge
- 2. a call to prove or justify something a challenge to the legality of the banning order 同義詞
- ▪ a guard's call for a password or other proof of identity I heard the challenge ‘Who goes there?’
- ▪ an objection regarding the eligibility or suitability of a jury member.
- 3. the administration of an immunogenic or infectious agent to an animal or person, in order to study the resulting immune response or measure the efficacy of a vaccine challenge trials have yielded positive results when carefully and ethically conducted human challenge studies occur in tightly controlled settings
動詞
- 1. invite (someone) to engage in a contest he challenged one of my men to a duel organizations challenged the government in by-elections 同義詞
- ▪ enter into competition with or opposition against the beauty industry as we know it is being challenged by a group of pioneers hoping to change the way we see our bodies
- ▪ make a rival claim to or threaten someone's hold on (a position) they were challenging his leadership
- ▪ invite (someone) to do or say something that one thinks will be difficult or impossible I challenge the Minister to deny these accusations
- ▪ make demands on; prove testing to a new way of life that would challenge them 同義詞
- 2. dispute the truth or validity of it is possible to challenge the report's assumptions 同義詞
- ▪ object to (a jury member) a certain number of jurors may be challenged
- ▪ (of a guard) order (someone) to prove their identity the watchman did not challenge him
- 3. administer an immunogenic or infectious agent to an animal or person, in order to study the resulting immune response or measure the efficacy of a vaccine the mice were challenged with the influenza virus
