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。 本の虫。 主にミュージカル • 小説 • 漫画 • それらの翻訳と感想について3か国語で呟きます～![](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="73" height="73"><rect fill-opacity="0"/></svg>)
They both count as 四字熟語 but the latter doesn't appear in any jpn-eng dictionaries as far as I've seen.
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Skyping with a Japanese friend last night, I introduced her to the idiom "all bark and no bite" cos I wasn't sure there was a jpn equivalent. She then taught me: 有言実行 (ゆうげんじっこう)= delivering on what you say 有口無行 (ゆうこうむこう) = not delivering on what you say