About
HSK levels

    1. writing brush; writing implement (pen, pencil etc)
    2. brushstroke; stroke (in painting or calligraphy); (bound form) style of writing; literary manner; technique of brushwork
    3. (classifier) stroke of a Chinese character
    4. (classifier) sum of money; financial transaction; piece of business
    5. (literary) to write (with a brush or pen)

    我用毛笔写字。 Wǒ yòng máobǐ xiězì.