复数： hemispheres

That makes 2009 the warmest year on record in that hemisphere .

这使得2009年成为南半球历史上最热的一年。

In the western hemisphere , all 22 species of albatross are endangered .

在西半球，多达22种信天翁面临灭绝的危险。

And in four hours the entire northern hemisphere will be one big potluck .

四个小时内整个北半球就会成为一个大百乐餐。

Third , us energy policy will increasingly be preoccupied with relations in the western hemisphere .

第三，美国能源政策将越来越着重于在西半球的关系。

Haiti , the lowest-ranked nation in the western hemisphere , scored 1.8 .

海地，是西半球排名最低的国家，得分1.8分。