(мор.) гирло річки
ammunition box mouth
chamber mouth
feed-block mouth
by word of mouth
word-of-mouth communications net
case mouth
cut across a river
leap a river
river crossing
river line
river line obstacle
bridge the river
left-bank tributary (of the river)
right-bank tributary (of the river)
vault a river
jump a river
combined-arms river crossing training
span a river
river current
traverse a river
crash a river on the run
crashing a river on the run
feint river crossing
reach the river line