leg guard的用法和样例：
例句
用作名词 (n.)
- A strip of cloth wound around the leg to form legging,used by soldiers in World War I.
缠在腿上形成护腿的一块布，一战中士兵用过。 - Shaughnessy said Chanel tires quickly, wears goggles for cataracts when she is in the sun, and booties to cushion a benign tumor on her hind leg.
肖尼西说，香奈尔很容易疲倦，因为眼睛有白内障，所以她在太阳光下需戴护目镜，由于后腿上长了一个良性肿瘤，她还穿了护腿套。
