默契?tacit agreement;tacit understanding;be mutually and tacitly understood or agreed;be well coordinated
?secret agreement
關(guān)于這個問題雙方曾有～。The two sides had a secret understanding on this question./在某人的～下with the acquiescence (or tacit understanding) of sb/配合～ with perfect mutual understanding; be well-coordinated/不夠～lack coordination among the players |