可持续林业不是一种选择;它是一种义务。
"The beauty of literature lies in its ability to transcend time and space."
新生儿具有奇妙的自我调节能力。
成功不仅仅以利润来衡量,而是以我们留下的积极影响来衡量。
An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment.