When to use concentration in Korean
Korean: 집중[ jip-jung ]

When to use it
Concentration (집중) means giving all your attention to one thing. You use this word when you study, listen, work, or do something carefully. It can be a noun, and it is also often used in phrases about focusing well or not focusing well.
Example sentences
저는 숙제에 집중해요.
I concentrate on my homework.
수업 시간에 집중하세요.
Please concentrate during class.
집이 시끄러워서 집중이 안 돼요.
My house is noisy, so I can't concentrate.
공원에서 책을 읽으면 집중이 잘 돼요.
I can concentrate well when I read a book in the park.
친구의 이야기에 집중했어요.
I concentrated on my friend's story.
기차 안에서 지도를 보며 길에 집중했어요.
On the train, I focused on the route while looking at the map.