【形式ばった表現】 mutual understanding
【形式ばった表現】 come to a mutual understanding
get oneself [one's ideas] over
communicate 《one's thoughts clearly, with somebody》
make oneself fully understood 《by》
【形式ばった表現】 promote [facilitate] mutual understanding 《between》.
読み方 そつう
Mutual understanding:(=する) to understand each other