元となった辞書の項目
胸を張る
verb
(idiomatic) to throw out one's chest; to be puffed up with pride
意味（1）
(idiomatic) to throw out one's chest; to be puffed up with pride
(idiomatic) to throw out one's chest; to be puffed up with pride
(idiomatic) to throw out one's chest; to be puffed up with pride
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