随机评估可以帮助我们了解发展中哪些措施有效，哪些无效。

"Children understand visual storytelling instinctively."

"Writing is the art of making silence speak."

Forests are the lungs of our planet; we must treat them with the respect they deserve.

我们的潜力是一回事。我们如何利用它是另一回事。