challenges
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challenges — 名詞
1. difficult tasks or problems
1.名詞
釋義
挑戰
difficult tasks or problems
例句
She faced many challenges when learning a new language.
challenges — 動詞
1. to invite someone to compete or argue
1.動詞
釋義
挑戰
to invite someone to compete or argue
例句
The teacher challenged the students to solve the puzzle.