Angielski ⇄ Rosyjski

hit a plateau akcenty
posp.	достичь плато (to) stop growing or improving at something – from phrasemix.com Tamerlane); выйти на плато (When tackling any long-term goal, you will inevitably hit a plateau. – NYT diyaroschuk)
olej.	выполаживаться (grafleonov); выполаживать (grafleonov)
sport	затормозить (One of the most frustrating things about training is when you hit a plateau and it seems like you cannot progress any further Julchonok)