山やまをあてる山を当てる表記・読み:やまをあてる1to make a lucky hit; to win against the odds; to anticipate correctlyexpressions (phrases, clauses, etc.)一段動詞idiomatic expression2to strike a vein of oreexpressions (phrases, clauses, etc.)一段動詞orig. meaning札へ残す語をコピー