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。

So the Tankadere kept steadily on her northward track.

唐卡德尔号坚定不移向北航行。

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。

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。

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

使皮肤拥有更深的色调。

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

美两国都希望北美自由贸易协定可以振兴西哥经济，提高国人民生活水平，并在一定程度上遏制移民进入美国。

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。

That's reporter James Fredrick speaking to us about this caravan of migrants moving northward.

以上是记者詹姆斯·弗雷德里克就向北推进的大篷车移民进行的报道。

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

法兰西斯·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方。

Last year, a record 1 million sandhill cranes stopped in the area during their northward migration.

去年，100万只沙丘鹤在向北迁徙的过程中在该区停下休息，这一数字打破了往年纪录。

Brought to full speed, the propeller made the sheet-iron hull tremble down to its rivets, and we sped northward.

推进器全速开行，船身钢板发生震动，一直在螺丝钉上都感到，它带我们向北方驶去。

On the left, the Pacific plate is sliding northward past it at the stately pace of a half-inch per year.

在左边，太平洋板块正以每年半英寸的壮观速度向北滑动。

Go from Corlears Hook to Coenties Slip, and from thence, by Whitehall, northward.

先从利亚斯·胡克走到恩梯斯·斯立甫，再从那边经过怀特豪尔朝北走去。 What do you see？

Once the birds have migrated northward to escape the cold, these marine mammals remain as sole lords of the polar continent.

鸟类被寒冷所迫，迁移到北方去。这时只有这些哺乳类动物是这南极大陆的唯一主人。

A storm system is sending tornadoes through parts of the southeast and spreading northward. At least two people have been killed.

台风形成的龙卷风袭击了美国东南部分区和北部区。龙卷风已造成至少2人死亡。

But soon, some of our Sun-adapted ancestors migrated northward out of the tropical zone, spreading far and wide across the Earth.

可是不久，一些适应了强紫外线的居民开始北上，逐渐离开热带区域 分散到世界各。

The remnants of Hurricane Laura are being felt northward across the central United States, dropping heavy rain and triggering tornado warnings.

美国中部北部区也感受到了飓风劳拉的余波，飓风带来了暴雨并引发了龙卷风警报。

Marlott people mainly thought and travelled northward and westward, while on this side people were interested in the east and the south.

勒特村的人们主要想着往北部和西部迁移，而这边的人们感兴趣的是东部和南部。

The boat scudded thus northward during the whole day, borne on by monstrous waves, preserving always, fortunately, a speed equal to theirs.

它前进的速度即使说比开足力的火车头还要快四倍的话，这种形容也还是保守的。