"原来如此,"英文怎么翻啊

So it is.

或者
OH，I SEE!

so that's why

so it is.

原来如此:
1. That accounts for the milk in the coconut.
2. That accounts for the milk in the cocoanut
3. so then

Examples:
啊，原来如此！
Ah, that accounts for it!
你的所谓杰作原来如此呀！
So this is your good works!