under one's breath片語KK [ˋʌndɚ wʌnz brɛθ] /ˈʌndɚ wʌnz bɹɛθ/發音片語1低聲地、輕聲地、小聲地She said something under her breath that I could not hear.她低聲說了句話,我沒聽清楚。2嘀咕、咕噥、暗自抱怨He cursed under his breath when the door slammed shut.門砰地關上時,他咕噥著罵了一聲。