mass avalanche

例句：

1. 1. The mountain was hit by a massive avalanche last year.
   去年，这座山遭到了一场大规模的雪崩。
2. 2.Avalanches can be dangerous if not properly managed.
   如果没有妥善管理，雪崩可能是危险的。
3. 3. The scientists were trying to predict the mass avalanche that was heading towards the town.
   科学家们试图预测正朝城镇移动的大规模雪崩。