解释：每种药材的生长都有其特定的环境和条件，说明药材产地与品质的关系。
The invention of the cotton gin was the result of necessity and observation.
The only limit to your success is your own imagination.
真正的可持续性在于将人类的欲望与地球的节奏对齐。
The desire to be loved is perhaps the most deeply rooted of all our vanity.