1·Temperatures cooled and the land became dries. Savannas were forming and forests were shrinking.
气温变凉，大地变干，热带稀树草原开始形成，森林渐渐缩。
2·The snow and cold wind has cooled the air.
这场雪和寒风使空气变凉了。
3·The rain has cooled the air.
雨使空气变凉了。
4·The rain has cooled the air .
雨已使空气变凉。
1·Once the pad has cooled or you are finished using it, gently peel it off clothing and discard of it properly.
一旦这个热贴凉了或你不想使用它了，轻轻的从衣服上撕去正确的丢弃它。
2·The coffee was untouched, the toast had cooled.
咖啡没有动过，吐司已经凉了。
3·Beat the eggs into the cooled sugar mixture, pour into the well of flour, and mix thoroughly.
把准备好的鸡蛋打在凉了的糖和黄油的混合物里面，然后一起倒在面粉的那个井里面，一起搅拌。