Sled-racing using a small sled (luge) that is ridden in a supine position and steered with the feet and a hand rope.是什么意思_Sled-racing using a small sled (luge) that is ridden in a supine position and steered with the feet and a hand rope.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句