解释：大多数花类药材都有升散的作用，而旋覆花却有降气的作用，说明药材特性的多样性。
每个角色都应该想要点什么，哪怕只是一杯水。
言语是行动的影子。
正确陈述的反面是错误陈述。但一个深刻真理的反面很可能是另一个深刻真理。
Painting is a language which cannot be replaced by another language.
The food issue is not only an economic issue, but also a political one, related to the long-term stability of the country.