say something, speak, mutter, etc. under your breath成語所屬單字breathsay something, speak, mutter, etc. under your breathsay something, speak, mutter, etc. under your breath — 慣用語慣用語1. To say something very quietly so that other people cannot hear it.1.慣用語釋義低聲說To say something very quietly so that other people cannot hear it.例句When the boss made the announcement, Tom muttered a complaint under his breath.She spoke an insult under her breath, hoping no one would hear.