In the desert regions that the Bushmen have long inhabited - they are thought to be the oldest strain of humanity still existing - water is scarce and difficult to find in the dry season.

在布希曼人长久居住的沙漠地区——他们被认为是存在的最古老的人类——在干旱的季节，水是几乎没有的并很难找到。

youdao

But experience from the southern hemisphere during their winter season shows that the virus can place a considerable strain on health services and can result in serious illness and death.

但南半球冬季的经验显示，此病毒可能会对卫生机构造成相当大压力，并可能导致重病和死亡。

youdao

Particularly under strain are the country's couriers, which have to cope with the Spring Festival peak season with only a small fraction of their normal manpower.

而用工特别紧张的要数快递员了，他们在春节这个快递高峰期只能处理平时快递量的一小部分。

youdao

Each year,scientists work to develop a unique influenza vaccine to protect people against the strain expected in the coming flu season.

VOA: standard.2010.07.21

Making their first appearance in Europe since 2002, Fulham occasionally showed the strain of beginning their season in July, with their defence loose at times and a lack of bite evident in midfield.

BBC: FK Vetra 0-3 Fulham

If that trend continues, we are likely to see even higher levels of the vaccine-resistant strain appear by the peak of the season, still weeks away.

FORBES: Why the Flu Is So Dangerous This Year, and Why It Could Get Worse

The Sydney 2012 strain was first seen in Australia, where the norovirus season is lasting longer than usual as outbreaks continue into their summer.

BBC: New strain of winter vomiting bug norovirus: Sydney 2012