品质始于土壤。健康的土地才能长出健康的水果。
The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?
你给予的越多,在生活中得到的就越多。
我们必须投资于研究和教育,以确保水产养殖与自然和谐发展。