丝氨酸 絲氨酸 sī ān suān ㄙ ㄢ ㄙㄨㄢ si1 on1 syun1

  • serine (Ser), an amino acid

Stroke order

Practice writing

Draw 丝 (1 of 3) — stroke by stroke.

Draw each stroke of the character in order using your mouse or finger. A hint appears after three misses.