“the heavens open”别理解成“天开了”，其正确的含义是突然开始下大雨；下起了倾盆大雨。

【例句】
Just as we got to the park, the heavens opened.
我们刚到公园，天就突然下起了大雨。

The match had just begun when the heavens opened and play was suspended.
比赛刚刚开始就突然下起倾盆大雨，所以只好暂停了。