It is further divided into four regions, or lobes, in each hemisphere.
每个半球又进一步分化为四个区域或叶。
Sixteen teams are taking part, divided into four groups.
16支队伍参加,它们被分成4组。
The three-hour class is divided into four blocks of 45 minutes each.
三小时的课分成四节,每节45分钟。
And I've divided these into two groups, the big three and the more interesting four.
我将其分为两组,三大因素和四个有趣因素。
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