They are happy to swim in the river

河里───the river

It took only one heave to hurl him into the river.───只一推，就把他推进了河里。

Perhaps he'd followed her suggestion of a stroll to the river.───也许他已经听从了她的建议去河边散步了。

These dams have restricted the flow of the river downstream.───这些堤坝限制了河水顺流而下。

This reservoir was formed by damming the River Blith.───这个水库是通过在布莱斯河上筑坝形成的。

The river gurgled and burbled.───河水汩汩流淌。

She had moored her barge on the right bank of the river.───她把驳船停泊在河右岸。

The river overflowed its banks.───河水涨出了堤岸。

Last night a boy was drowned in the river.───昨晚一名男孩在河里溺亡。

Nearly one million people crossed over the river into Moldavia.───将近100万人渡过这条河进入摩尔达维亚。

Across the river the railway track ran up to the pithead.───铁轨跨过这条河直达矿井口。

Lets have a picnic down by the river.

The river glittered in the sunlight.

The city annexed the area across the river.

Dip him in the river who loves water. 

Let us cross over the river and sit in the hade of the trees. 

He spent weeks panning for gold in the river.

The river is flush with rain.

The path led through the trees to the river.

His soldiers were arrayed along the river bank.