Nihongo
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Word · 単語
difficult problem
difficult problem · challenge
JLPT
strokes
#17304
frequency
Not started
Study

Mastered counts as known everywhere (frontier, map, extension) but never appears in the quiz again. New wipes the review history for this item.

· examples

  • That's a tall order.

  • You have to cope with those difficult problems.

  • No sooner had we finished working on one tough problem than the president sent us yet another straight from the top.

Kanji used