Translation of "이래서" in English

얼마나 깊은지 보이지도 않아요 이런 갱도는 이래서 위험합니다

I just can't see how deep that is. That's the danger of these sort of tunnels,

이래서 추적할 때 나무는 늘 도움이 되죠 단서를 잡아챌 때가 많거든요

That's why trees are so good for the tracker, because they often snag signs.

하지만 로프를 보호하는 건 처음 해봐요 잘됐네요, 이래서 항상 팬티를 입어야 하죠

But I've never protected a rope with it. This is good. And that's why you should always wear underpants.