contraction hypothesis of the earth

例句：

1. 1. The temperaturehas contracted significantly since the beginning ofwinter.
   自冬季开始以来，温度显著下降。
2. 2. The company's profits have contracteddue to increased competition.
   由于竞争加剧，公司的利润已经减少。
3. 3. Thepopulation has contracted asa result of the pandemic.
   由于疫情，人口数量有所减少。