The activists postponed the fish release when the river level dropped.

当河水水位下降时，活动人士推迟了放鱼。

Torrential downpours have caused dams to overflow and river levels to surge.

倾盆大雨导致大坝溢出，河水上涨。

There are concerns that rising river levels could cause more flooding in Pakistan.

有人担心，不断上升的河流水位可能会在巴基斯坦引发更多洪水。

The river levels are rising and officials want to relive pressure on the city's levees.

河水水位正在上升，官员们希望缓解河水对该市防洪堤的压力。

Across the Midwest, floodwaters brought record river levels to 41 places, including 17 spots in Nebraska.

在中西部，洪水使水位上升到历史最高水平，波及了41个地方，其中包括内布拉斯加州的17个地方。

The low river levels and high heat brought the water temperature up to nearly 100 degrees Fahrenheit.

在河水的低水位与高温的共同作用下，水温上升到将近100华氏度（约37.8摄氏度）。

Now, a severe summer drought that lowered the Mississippi river's water levels is to blame for this.

现在，严重的夏季干旱降低了密西西比河的水位，这是罪魁祸首。

An estimated 100,000 to one million fish suffocated because the river levels were too low to flush out farm runoff.

据估计，由于河水水位过低，无法注入农田径流，致10万到100万条鱼因窒息而死亡。

CNN reporter Frederik Pleitgen was in the German city of Meissen where river levels are more than 4 times higher than average.

CNN记者弗雷德里克·普雷根正在德国城市麦森, 这里河流水位高于平均水平的4倍。

The governor of the US state of Missouri has warned residents that river levels are still rising after four days of flooding left 13 people dead.

密苏里州遭遇洪水，4天强降雨已造成13人死亡，因洪水水位不断上涨，密苏里州州长向民众发出警告。

In addition, both universities comprise many buildings of great beauty and antiquity, sited on level terrain ideal for cycling, near slow- moying rivers suitable for rowing and punting.

两所大学还都有许多漂亮的古建筑，坐落在地势平坦的地方，旁边有静静流淌的河流，在这里骑车、划船，撑篙十分惬意。

Now the river did indeed host individual triathlon swimmers for their event on July 31, but since then there's been a lot of trash talk about the river's bacteria levels.

实际上，在 7 月 31 日个人铁人三项游泳者这条河参加了比赛，但此后关于河流细菌水平的垃圾讨论却不少。

The amount of rain we received, in some places an excess of a flood, has caused river levels not only to rise rapidly but to go to places they've never been before.

此次降雨不仅让水位上涨，许多从未发生过灾情的地区也发生了洪水。

You can just ask one of the world's largest chemical manufacturers who last year took a 280-million dollar hit due to low river levels of the Rhine River in Germany.

您可以问问世界上最大的化学品制造商之一，他们去年因德国莱茵河水位低而遭受了 2.8 亿美元的损失。

And key to this canal systems design were barrages: Dam like infrastructure that raised the river's upstream water level so that water can be funneled into canals with gates that open and close depending on water supply and demand.

这种运河系统设计的关键是堤坝：像水坝一样的基础设施，可以提高河流上游的水位，这样水就可以流入运河，闸门可以根据水的供应和需求打开和关闭。