Finding a cure for cancer is one of the biggest challenges facing medical researchers I've promised to finish the task by friday, but it's going to be quite a challenge It could be a bit of a challenge getting the piano through the doorway. 必应词典为您提供Challenge的释义，美 [ˈtʃæləndʒ]，英 [ˈtʃælɪndʒ]，n. 挑战；质疑；质询；挑战书； v. 考查；盘问；对…怀疑（或质疑）；拒绝接受； 网络释义： 向…挑战；挑战模式；叫板； 动词用法涵盖发起竞赛（如"Challenge to a poker game"）、能力考验（如"Challenge her determination"）、法律异议或医学免疫激发等专业领域应用。 该词常与介词"to"搭配，复数形式为challenges，动词变位含challenged/challenging等。 Something that by its nature or character serves as a call to battle, contest, special effort, etc
Space exploration offers a challenge to humankind Objection, exception, question, complaint, protest, difficulty, criticism, fuss Willingness, approval, sanction, agreement, acceptance, compliance, obedience, acquiescence A call or summons to engage in any contest, as of skill, strength, etc. See examples of challenge used in a sentence. Challenge verb [t] (disagree) b2 to express disagreement with ideas, rules, or someone's authority:
(the situation of being faced with) something that needs great mental or physical effort in…
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