What's the spring in the north like?

北方的春天怎么样？

youdao

They fly to very specific places in South America and will often come back to the same trees in North American yards the following spring.

它们会飞往南美几个特定的地方，然后在第二年春天又飞回到北美院子里的同一棵树上。

youdao

When it is warm, they start to back north in the spring.

天气暖和的时候，它们就会在春天启程返回北方。

youdao

In the spring, the female monarchs leave Mexico and fly as far north as the American state of Kansas.

VOA: special.2010.04.27

The survivors floated down the Amur, wintered at the river's mouth and in the spring turned north into the Sea of Okhotsk.

ECONOMIST: The Amur River

The unrest in Yemen began in 2011 as the population got caught up in the Arab Spring uprisings that swept North Africa and the Middle East.

CNN: Former president demands foes leave Yemen

The fire forced staff to evacuate from the Siding Spring Observatory, in the state's north-east.

BBC: News - Australia bushfire destroys homes and damages observatory