ice road的用法和樣例：
例句
- They opened up an ice passage for the transportation of goods in Winter.
為了冬季的貨物運輸，他們開闢了冰道。 - Luge athletes race by lying on their backs on sleds with steel runners.The athletes control the sleds with their feet as they speed down a track covered with ice.
雪橇運動員坐在裝有輪子的雪橇背上進行比賽，當他們行駛在冰道上時，他們通過腳來控制雪橇的速度。
