an accident waiting to happen / in and of itself / not buying it / throw a (monkey) wrench in the works / throw a wrench into

an accident waiting to happen : 예기된 사건
refers to a person, thing, or situation that is likely going to cause an accident

ex. I met her by accident on the street, but I was not surprised cuz I felt it was an accident waiting to happen.

길거리에서 우연히 그녀를 만났지만 놀라지 않았어. 어차피 만나게 될거라는 걸 느꼈으니까.

The bubble had to burst, it was an accident waiting to happen.

그 거품은 터져야만 했어, 그건 어차피 발생할 일이었고.

They got hitched in the end in spite of all the obstacles! To be honest, it was an accident waiting to happen.

그들은 온갖 어려움에도 불구하고 마침내 결혼에 골인했어! 솔직히 말해서, 예기된 사건이었지만.

 

in and of itself : 그것 자체는
on its own; by its very nature

ex. In my book that's not, in and of itself, a 'sin'.

내 생각으로는 그것은 본질적으로 죄가 아니다.

That in and of itself is rather spectacular.

그 자체만으로도 눈을 뗄 수 없이 장관을 이루었다.

That's a superpower in and of itself.

그것 자체가 초능력이다.

throw a (monkey) wrench in the works : -을 방해하다, 실패케 하다
throw a wrench into (something) : (남의 계획을)망쳐 놓다
to do something that prevents a plan or activity from succeeding

ex. The project ran out of money, and that really threw a wrench in the works.

그 프로젝트는 돈을 바닥냈고, 그건 정말로 실패했다.

This bad weather really threw a wrench into our plans.

이 나쁜 날씨는 정말이지 우리의 계획을 망쳐놨어.

Have I thrown a wrench into your plan?

내가 너 계획을 망쳐놨니?

not buying it : 속지 않는다, 믿지 않는다
to not accpet or believe something is the truth

ex. Let me tell you something. I'm not buying it.

이것만 알아둬. 난 그거 안 믿어.

I know about that, but I'm not buying it.

저도 이미 알고는 있지만, 인정하긴 어려워요.

I'm not buying that the dog ate your homework.

그 개가 너 과제를 먹었다는 걸 믿진 않는단다.

I can't believe you bought it.

너가 그걸 믿었다는게 놀라워.