既然这样英文怎么说

既然这样
in this case
情况既然是这样
that being the case

例句：

In this case. I'll restrain myself from smoking.
既然这样，那我就克制一下自己。

That being the case, we have to cancel off the plan.
情况既然是这样，我们只好取消这个计划了

根据语境，有很多种说法。
常见的有：
So, Anyway, In this case, now that

in this case
in the circumstances
都可以

now that

in this case