in the fast lane
01
急成長している, 出世街道に乗る
in a state of moving or progressing rapidly, particularly with regards to one's career, success, or lifestyle
idiom
例
After the promotion, her career moved into the fast lane.
昇進後、彼女のキャリアは一気に伸び始めた。
02
in a way that involves danger yet is full of excitement and adventure
idiom
informal
例
Ever since he started traveling the world as a freelance photographer, he's been living life in the fast lane, capturing breathtaking but risky shots.
