level off

Từ điển Oxford Advanced Learner 8th

ˌlevel ˈoff/ˈout derived
1. to stop rising or falling and remain horizontal
•The plane levelled off at 1 500 feet.
•After the long hill, the road levelled out.
2. to stay at a steady level of development or progress after a period of sharp rises or falls
•Sales have levelled off after a period of rapid growth.
Main entry: ↑level_derived