Climate change poses the greatest threat to marine life, and we must act now to mitigate its effects.
回忆,即使是最珍贵的回忆,凋零的速度惊人的快。但我不服,我最珍视的回忆,我从不见它凋零。
数十亿年来,大自然一直是最出色的生物工程师。
我们都生活在祖先生活的废墟中。
Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.