When to use to rush at in Korean
Korean: 달려들다[ dal-ryeo-deul-da ]

When to use it
달려들다 means to move quickly and suddenly toward someone or something. It is often used when a person or animal rushes at another person in anger, surprise, or excitement. You can also use it when someone runs straight toward something very fast.
Example sentences
강아지가 공에 달려들었어요.
The puppy rushed at the ball.
동생이 엄마에게 웃으며 달려들었어요.
My little brother rushed at Mom with a smile.
큰 개가 나에게 달려들어서 무서웠어요.
A big dog rushed at me, so I was scared.
친구가 장난으로 저에게 달려들었어요.
My friend rushed at me as a joke.
세일이 시작하자 사람들이 가게 안으로 달려들었어요.
When the sale started, people rushed into the store.
아이들이 바다를 보자 물로 달려들었어요.
When the children saw the sea, they rushed into the water.