全部

1·As a sport, skiing compasses downhill skiing, skiing touring, and cross-country ski racing.

作为一项运动，滑雪分为高山滑雪、越野滑雪和越野滑雪赛。

2·As a sport, skiing encompasses downhill skiing, touring, and cross-country ski racing.

作为一项体育运动，滑雪包括高山滑雪、滑雪旅行和越野滑雪赛。