Correct

侧翼

/ cè yì / 
Strokes

Definition

flank

Example

As a Noun

flank

1
Cóng
从
cèyì
侧翼
bāochāo
包抄
dírén
敌人

outflank the enemy

2
Cèyì
侧翼
tuījìn
推进

lateral action