to run into (room, building, etc.)
to go for long training runs
子供が台所に走り込んだ。
The child ran into the kitchen.
彼は急いで部屋に走り込んできた。
He came running quickly into the room.
医者は新しい患者のために診察室へ走り込む。
The doctor rushes into the examination room for the new patient.