difficult
adj.
c.1400, apparently a back-formation from difficulty. French has difficile, Latin difficilis. Of persons, "hard to please," from 1580s.
词汇 | difficult |
词根词缀 | Online Etymology Dictionary difficult adj. c.1400, apparently a back-formation from difficulty. French has difficile, Latin difficilis. Of persons, "hard to please," from 1580s. |
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