1. large almost cosmopolitan genus of evergreen or deciduous shrubs and herbs with often showy yellow flowers; cosmopolitan except tropical lowlands and arctic or high altitudes and desert regions. 
   一个常绿或落叶性灌木或草本大属，几乎为世界性生长，花通常美丽；除热带苏格兰东南部低地和北极圈或高纬和沙漠地区外世界性生长。
2. Endure an Arctic winter. 
   忍受北极的冬天
3. sparsely peopled arctic regions. 
   人烟稀少的北极地区。
4. They explored the Arctic regions. 
   他们探测过北极地带。
5. A brutal winter in the Arctic. 
   北极的严冬

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