cross-river

They could not cross the river owing to the flood.

由于洪水，们不能。

Before the enemy's attack he crossed the river and alarmed the unarmed villagers.

在敌人进攻前, 去向手无寸铁的村民报警。

A ferry crosses the river every hour.

渡船每小一次。

Therefore, the water-surface crossing with mobile flexible pipelines is often adopted and it is a first choice to cross an innavigable river.

软管水面越流具有铺设速,检修方便,容易掌握和使用等优点,尤其是对于不通航流,是软质机动管线越流的首选方式。