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词汇 difficult
词源

difficult adj.

c. 1400, "not easy, requiring or dependent on effort; troublesome, arduous," apparently an unetymological back-formation from difficulty. French has difficile, Latin difficilis. Of persons, "hard to please," from 1580s. Related: Difficultly.

updated on October 13, 2021

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更新时间:2025/5/28 3:12:53