Our prior answer was that the passage is a natural occurrence, and not artificially controlled.

我们以前的回答是它的过境是自然现象，不是人为操控的。

youdao

Our prior answer was that the passage is a natural occurrence, and not artificially controlled.

我们以前的回答是它的过境是自然现象，不是人为操控的。

youdao