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。
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.