HSK 2 · Must & can
必须
bì xū
must; to have to
Stroke order of 必须
2 characters, 14 strokes in total. Watch the animation, then try writing it yourself.
必 · 5 strokes须 · 9 strokes
Memory trick
A heart '心' slashed by a stroke '丿' must be fixed; a beard '须' must grow.
Parts: 必 must (心 heart + 丿 slash) + 须 must; beard (彡 hair + 页 head)
Example sentence
明天你必须早点儿来。
You must come a bit earlier tomorrow.