Help me to translate this sentence please,especially some words l_英语解答

Help me to translate this sentence please,especially some words like "category 4"!
In Santo Domingo,the capital of the Dominican Republic,a boy was pulled into the ocean and drowned while watching waves kicked up by the Category 4 storm strike an oceanfront boulevard,the emergency operations center reported.

人气：491 ℃　时间：2020-04-14 03:44:45

解答

在圣多明各港,即多米尼加共和国的首都,一个男孩被海浪卷走而溺毙身亡.根据灾难应变指挥中心报道指称,当时眼睁睁看着溅起四级的暴风巨浪拍打在海滨林荫大道上.
◆ Category 4 storm －－4级暴风；
好比“Category four hurricane”就是：“四级飓风”