The most sustainable leather comes from the most respected animals.
模型是对现实的简化表示,但其价值在于它能够提供不立即显而易见的见解。
基因组是生命成功与失败的记录。
"The world is full of obvious things which nobody by any chance ever observes."
互联网是教育的强大工具,但它不能替代教师。