Although these populations might be able to adapt by shifting their spawning grounds northward.

尽管这些鱼群可以通过将产卵地向北迁移来适应这一变化。

The reason for the troops is the caravan of Central American migrants making their way northward.

派遣军队的原因是中美洲移民正在向北行进。

By Sunday night, ash from the Taal volcano had blown more than 100 kilometers northward to Manila.

到周日晚上，塔阿尔火山的火山灰已经向北吹了100多公里到达马尼拉。

He says the implications of beavers' northward expansion are big.

泰普表示，海狸向北扩张有重大影响。

Beavers may be following the northward expansion of vegetation onto the tundra.

海狸可能是在追随冻原植被向北扩展的脚步。

They're moving northward, and many hope to reach the United States.

他们在向北推进，很多人希望能抵达美国。

Both countries hoped the deal would boost Mexico's economy, raising living standards and stanching the flow of migrants northward.

美墨两国都希望北美自由贸易协定可以振兴墨西哥经济，提高墨国人民生活水平，并在一定程度上遏制移民进入美国。

But soon, some of our Sun-adapted ancestors migrated northward

使皮肤拥有更深的色调。

We're expecting it to make a northward turn over the next few days.

我们预计它将在未来几天向北移动。

Benares was Sir Francis Cromarty's destination, the troops he was rejoining being encamped some miles northward of the city.

法兰西斯·柯罗马蒂先生要在这里下车，他的部队就驻扎在城北几英里以外的一个地方。