Jason: Hey, I think my computer has a virus. It’s been acting up. Can you fix it for me?
Mike: Oh! You’d better ask Nick. He knows computers inside out. He can definitely fix it for you.
Jason: Great, thanks for letting me know.

Jason이 Mike에게 "Hey, I think my computer has a virus. It’s been acting up. Can you fix it for me? 내 컴퓨터가 바이러스에 감염된 것 같아. 네가 좀 고쳐 줄 수 있니?”라고 묻자 Mike가 “Oh! You’d better ask Nick. He knows computers inside out. 닉한테 물어봐. 걔는 컴퓨터에 대해서 모르는 게 없어. He can definitely fix it for you. 틀림없이 고쳐 줄 수 있을 거야.” 라고 하네요.

Now keep today’s expression ‘know something inside out’ in mind and let’s hear the conversation again. 그럼 다시 한번 대화를 들어볼까요?

Jason: Hey, I think my computer has a virus. It’s been acting up. Can you fix it for me?
Mike: Oh! You’d better ask Nick. He knows computers inside out. He can definitely fix it for you.
Jason: Great, thanks for letting me know.

Today’s expression is know something inside out. When you know something inside out, it means that you know something thoroughly or that you know everything about a subject.

미국인들은 ‘inside and out’이라는 표현을 자주 씁니다. 말 그대로 ‘inside and out’는 ‘겉과 속’, ‘내면과 외면’ 이라는 뜻이고, 단어 ‘know’는 ‘알다.’ 라는 말이죠. 즉 to know something inside out은 ‘무언가 또는 누군가에 대해 안팎으로 잘 안다’ 라는 의미입니다.

다시 말해서 ‘무언가를 속속들이 잘 안다.’, ‘무언가에 대해 모르는 게 없다.’ 라는 뜻입니다. 본문에서 Mike가 닉이 컴퓨터에 대해서는 아주 잘 아니까 닉에게 수리를 부탁하라고 Jason 에게 알려줬죠. “Oh! You’d better ask Nick. He knows computers inside out.” 이렇게 know something inside out은 무언가를 안팎으로 잘 알 때 쓰면 딱 좋은 표현입니다.

예문을 통해 알아보겠습니다. “Ian has read that book so many times. He knows it inside out.” 라고 하면 “이앤은 그 책을 여러 번 읽어서 그런지 내용이 아주 훤해.”라는 뜻이 됩니다. Now you know what the expression ‘know something inside out’ means right? Then we will listen to the conversation for the last time.

Jason: Hey, I think my computer has a virus. It’s been acting up. Can you fix it for me?
Mike: Oh! You’d better ask Nick. He knows computers inside out. He can definitely fix it for you.
Jason: Great, thanks for letting me know.

Let’s review. When you know something inside out, it means that you know something thoroughly or that you know everything about a subject. KNOW SOMETHING INSIDE OUT.