Human activities have become a significant force shaping Earth's climate.
人类活动已成为塑造地球气候的重要力量。
我和普通人一样。会受伤也会流血,也很容易难为情。
The past is never really past—it shapes who we are.
The basic laws of behavior are the same for all organisms.
If we want clean air and water, we must start by protecting our forests.