About
HSK levels

    1. old variant of 以[yi3]

    1. old variant of 以[yi3]

    1. abbr. for Israel 以色列[Yi3 se4 lie4]

    1. to use; by means of
    2. according to
    3. in order to
    4. because of
    5. at (a certain date or place)

    我用笔以写字。 Wǒ yòng bǐ yǐ xiězì.