We're also tackling illegal migration and stopping criminals from abusing our asylum system.

我们也在处理非法问题，阻止罪犯滥用我们庇护制度。

De Bellis said there are constituencies that believe Europe is under siege from migration.

德·贝里斯说，有些选认为欧洲正被难“围攻”。

The construction of the Three Gorges Project entails large migration.

三峡工程建设需要大规模。

On the other hand, there are fears that lagoons might harm both fish and birds, for example by disturbing migration patterns, and causing a build-up of silt, affecting local ecosystems.

在另一方面，有很多人害怕泻湖可能会危害鱼类和鸟类，比如说会扰乱迁徙路线，导致泥沙堆积，影响当地系统。

20. Where do monarch butterflies settle at the end of the migration?

20。帝王蝶在迁徙最后会安顿在哪里？

A humpback whale has confounded scientists after making one of the longest and most unusual migrations ever recorded.

一头座头鲸进行了有记录以来最长和最不寻常迁徙，这让科学家们感到困惑。

Critics say that has led to a surge in illegal migration.

批评人士指出，这导致了非法激增。

This year's migration is already well under way.

蝶群早已踏上今年迁徙旅程。

The evidence is clearly starting to suggest that there were multiple migrations and dispersals in different parts of the world going in all kinds of directions and generally mixing up the gene pool.

已经有证据开始显示，在世界不同地方曾经有过多次不同方向古人类迁和扩散，所在这些都融人了整个人类基因库当中。

The other thing is in versus out migration.

另外一件要考虑就是迁。

For most, this momentous migration is their first.

对于大多数来说，这次重大迁徙是他们第一次。

There have been arguments over financial regulations, bailouts and different approaches to migration.

关于金融监管、紧急援助和不同方法，一直存在争议。

For the receiving countries, the substantial costs of uncontrolled migration are borne overwhelmingly by low-income citizens, whose concerns are often ignored by both media and government.

对于迁入国来说，应对迁入国内所需要支出成本十分昂贵，这些低收入人们，往往被媒体与政府遗忘。

In recent weeks, the United Nations also oversaw landmark global agreements on migration and refugees, that will help to save lives and overcome damaging myths.

最近几周，联合国还主持达成了具有里程碑意义和难问题全球协定，将有助于拯救命、克服破坏性谎言影响。

The U.N migration agency says since the year 2000, more than 33,000 people have drown in the Mediterranean as they attempted to reach Europe.

联合国机构表示，自2000年以来，超过3.3万人试图到达欧洲时在地中海溺亡。

C) A lot more refugees die during migration.

C）更多难在过程中死亡。

Well, I think it was more a matter of simpIy trying out his idea, to see if migration from the east was possible.

我觉得这也许只是他想要试试自己想法而已，看看从东边迁过来有没有可能性。

No wonder that scientists are busy studyingthe mechanism that enables cells to move around, in hope offinding a way to control this migration.

科学家苦心研究转细胞原理，希望能抑制癌细胞迁。

Their forced migration to Oklahoma became known as the Trail of Tears.

被迫来到俄克拉荷马州迁徙之路有了一个名字--眼泪之路。

Critics of the Biden Administration say that the president is not acting fast enough to get the migration situation under control on the U.S. southern border.

批评拜登政府人称，总统没有快速采取行动来控制美国南部边境状况。