The fact was that my sisters had amused themselves by turning the cock to see the water flow, but a sudden spurt wet them all over and frightened them so much that they ran away without closing it.

事实是，我的姐妹们为了消遣，转动旋塞看水流，但突然喷出的水把她们弄湿了全身，吓得她们没关门就跑了。