由于暴雨，学校的运动会不得不取消。

The school sports day was a total ___washout due to the heavy downpour.

这场精心策划的活动最终变成了彻底的失败。

The carefully planned event ended up being a total ___washout.

暴雨在山坡上冲出了几条很深的沟壑。

The storm created several deep ___washouts on the hillside.