Afterwards he found a sunspot group which lived long enough to disappear from view on the western limb of the sun, to reappear on its eastern limb, and finally to regain its old position.

后来，他发现了一个太阳黑子群，它存在时间很长，从太阳的西边消失，又在东边出现，最后又回到原来的位置。

youdao

Qinghai is tectonically in the mid-western part of the Pan-Cathysian Block Group and the north part of eastern Tethys.

在构造上，青海位于泛凯西斯山脉群的中西部和特提斯东部的北部。

youdao

One group from eastern Texas, has hired an RV to make the journey.

来自东德克萨斯州的一组人雇了一辆休闲车成行。

youdao

The next largest group,twenty-one percent, were serving in Eastern Europe or Central Asia.

VOA: special.2011.03.28

The two remaining bids come from a UK-based businessman and a Middle Eastern group.

BBC: Court gives Sheffield Wednesday time to clear tax bill

Mrs Moss, who had grown up on a farm beside the Swanage branch line, formed the Corfe Castle Eastern Preservation Group.

BBC: Tributes to Corfe Castle campaigner Monavyn Moss

But Chu, the chairman of First Eastern Investment Group and a prescient booster of Chinese-Arab trade, was always too busy sharing his expertise with other companies.

FORBES: The New Silk Road