About
HSK levels

    一问三不知 一問三不知

    yīwènsānbùzhī

    1. lit. to reply "don't know" whatever the question (idiom); fig. absolutely no idea of what's going on; complete ignorance

    关于这个项目的进展,他一问三不知。 Guānyú zhège xiàngmù de jìnzhǎn, tā yīwèn sān búzhī.