About
HSK levels

    shú

    1. ripe; mature; thoroughly cooked; done
    2. familiar; acquainted
    3. experienced; skilled
    4. (of sleep etc) deep; profound
    5. also pr. [shou2]

    这个苹果已经熟了,可以吃了。 Zhège píngguǒ yǐjīng shú le, kěyǐ chī le.