Correct
笑逐颜开
/ xiào zhú yán kāi /
Strokes
Definition
smile spread across the face (idiom); beaming with pleasure/all smiles/joy written across one's face
Example
Definition
beam with joy/smiles/delight; (one's face) break in a ripple of mirth; (one's face) be wreathed in smiles
1
Bùyóude
不由得
xiàozhúyánkāi
笑逐颜开
can't restrain a smile of joy