About
HSK levels

    有无 有無

    yǒuwú

    1. to have or have not; surplus and shortfall
    2. tangible and intangible; corporeal and incorporeal

    这个问题的有无关系到整个项目的成败。 Zhège wèntí de yǒuwú guānxì dào zhěngge xiàngmù de chéngbài.