"Chicken leg" is the common Engpsh translation for "鸡腿".

Example sentences:

Would you pke a chicken leg with your meal?
I only eat the dark meat, so I usually order a chicken leg.
Chicken legs are a popular dish at barbecues.

中文翻译：

你的餐中想要一个鸡腿吗？
我只吃深色肉，所以通常会点一个鸡腿。
鸡腿是烧烤晚会上很受欢迎的菜肴。