not unnaturally

1 自然而然地

to the manner born

2 当然

due natural righteous rightful undisputed deserved matter-of-course well sure absolutely naturally necessarily surely reasonably positively rightly justly deservedly natch allowedly rather in all conscience by the nature of the case by the nature of things from the nature of the case from the nature of things in the nature of the case in the nature of things by definition of necessity

3 当然地

well necessarily reasonably justly deservedly natch

4 难怪

It's no wonder that It's no wonder no wonder that It is no wonder