challengesOur editors are putting together more complete content — check back in about 20 minuteschallenges名詞 · 1動詞 · 1challenges — noun名詞1. difficult tasks or problems1.名詞釋義difficult tasks or problems例句She faced many challenges when learning a new language.challenges — verb動詞1 解釋1. to invite someone to compete or argue1.動詞釋義to invite someone to compete or argue例句The teacher challenged the students to solve the puzzle.