Protecting marine life is protecting our own future.
Both incentives and punishments elicit powerful responses.
大陆漂移的第一个概念早在1910年就浮现在我的脑海中,当时我在观察世界地图时,受到大西洋两岸海岸线吻合的直接印象的启发。
The beauty of science lies in its ability to explain the natural world.
法律权利不是自然权利;它们是由法律创造的。