migrate 四级六级考研雅思

Many Asians are migrating to the West.

许多亚人移民去了西国家。

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。

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。

Pioneers from New England migrated to all parts of the United States.

来新英格兰的拓荒者移居到美国各地。

Herdsmen used migrate with their cattle and sheep in search of fresh grass.

从前牧民们为了寻找新鲜的草原赶着牛羊一起迁移。

People migrate to find work.

人们迁居去找工作。

Using anatomical method, the gonadal development in postembryonic period of Rana chensinensis, which had been migrated from Northeast China, is studied.

摘要采用解剖法，对南移后的中国林蛙胚胎后期性腺发育进行了观察。

The total sedimentation was that rivers were branching and migrating frequently,and the sedimentary structures and fossil of ichnite were growing generally.

其总体沉积特征为:河道频繁分支与迁移,发育各种沉积构造及生物遗迹化石。

Space for restorations was created by intruding and uprighting the worn and migrated teeth and developing the correct incisal angle (Figure 8).

修复的空间被通过压低前牙和直立磨耗的和移位的牙齿获得。并且形成了正确的切角。

Strong expression is first observed in prechordal plate at the stage of 50% epiboly, l the stained cells then migrate to the proctodeum.

整胚原位杂交结果显示该基因最早主要在50%外包期的前脊索盘中表达，既而迁移到原肛处。

Qijia-Gulong depression is master source area of oil and gas in Songliao Basin, a part of oil and gas from the source is held up in the depression, the other migrates to west clinoform zone.

摘要齐家-古龙凹陷是松辽盆地主要油气源区，其中心线以西生排出的油气一部分存留在凹陷内，另一部分向西部斜坡运移。