当心脚下的台阶。
Watch out for the steps under your feet.
当心
to take care; to look out
Watch it being written
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
当
心
Nice writing!
Build with these blocks
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
当
See it in sentences
路上滑，请当心。
The road is slippery; please be careful.