“顺其自然”的说法有很多，比如：leave it as it is; let it be etc.
示例
A：How do you want to deal with the relationship between you and her?
B：Go with the flow.
A：你想怎样处理你们之间的关系？
B：顺其自然吧。
A：What on earth do you want?
B：Nothing but going with the flow.
A：你到底想要什么?
B：什么都不要，只是顺其自然。