FOSSIL - FUELS, SEVERE - FAMINE/ SHORTAGES, PRISTINE - ENVIRONMENT/ICE CAPS, FINITE - RESOURCES, CLIMATE - CHANGE, SOLAR - ENERGY, POPULATION - DENSITY, RISING - SEA LEVELS, LIFE - EXPECTANCY, ORGANIC - FARMING, TOXIC - WASTE, INTENSE - RAINFALLS,

Proficiency Objective- Unit 13

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?