不置可否

    bùzhìkěfǒu

    1. Idiomdecline to comment; not express an opinion; be noncommittal; hedge

    对于这个争议话题,他一直不置可否。Duìyú zhège zhēngyì huàtí, tā yīzhí bùzhìkěfǒu.He remained noncommittal on this controversial topic.