迁徙

These birds migrate northwards in spring and southwards in fall.

这些鸟春天向北迁徙,秋天向南迁徙.

Great herds of buffalo migrated across the plains.

大群野牛迁徙过平原.

The mudflats offer a winter home to thousands of migrating swans.

泥滩成为成千上万只迁徙的天鹅越冬的场所.

Swallows migrate south in winter.

燕子在冬天迁徙到南方。

Birds usually migrate from north to south.

鸟类通常由北向南迁徙。

It created freedom of movement and of vocational choice.

它创立了迁徙自由和选择职业的自由.

At present , obviously, nevertheless, he was not likely to displace himself.

但时至今日, 很清楚, 他不可能再迁徙了.

Migrating birds filled the pale sky.

灰白的天空中满是迁徙的飞鸟。

Large numbers of birds migrate south every winter.

每年冬季大量的鸟类迁徙南方.

Some creatures find safety in numbers and travel in flocks, schools or herds.

有些动物群集而居,迁徙时成群结队以求安全.

These birds migrate to North Africa in winter.

这些鸟冬天迁徙到北非.

It foundered during the turmoils accompanying the Great Migrations.

它在随着民族大迁徙而出现的混乱中崩溃.

The Shelleys moved restlessly from place to place.

雪莱一家经常到处迁徙.

Some birds migrate as season changes.

有些鸟随季节迁徙.

Globalization today and the free movement inevitably makes the dual nationality.

在全球化的今天,公民的自由迁徙和流动必然导致双重国籍的产生.