but suppose no more rain fell into it and no more water was brought to it by rivers

题目

but suppose no more rain fell into it and no more water was brought to it by rivers
问题1-1：no more water was brought to it by rivers
是不是用be 过去分词 状语 by 动作执行者……被动语态?
问题1-2：要怎么翻译这句话?请将思维模式具体呈现……谢谢

答案

但是,假设（海洋）不再得到降雨而且河流也不再有水注入
直译：但是假设不再有雨水降到它（海洋）里,而且没有水被河流带入它
你的理解正确,was brought是被动语态,by rivers是执行者,即水不被河流带到海中