leg guard的用法和樣例：
例句
用作名詞 (n.)
- A strip of cloth wound around the leg to form legging,used by soldiers in World War I.
纏在腿上形成護腿的一塊布，一戰中士兵用過。 - 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.
肖尼西說，香奈爾很容易疲倦，因為眼睛有白內障，所以她在太陽光下需戴護目鏡，由於後腿上長了一個良性腫瘤，她還穿了護腿套。
