Д36
ЛОМИТЬСЯ В ОТКРЫТУЮ ДВЕРЬ (В ОТКРЫТЫЕ ДВЕРИ)
VPsubj- humanoften
infin with зачем, незачем, не стоит
etcthe verb may take the final position, otherwise
fixed WO to argue or try to prove sth. that is already obvious, well-known, and that no one disputes
X ломится в открытую дверь X is forcing an open door
X is belaboring (restating, trying to prove) the obvious(in limited contexts) X is preaching to the converted.
Loan translation of the French enfoncer une porte ouverte.