记忆就像拼贴画 - 有些部分清晰,有些褪色,随着时间的推移重新排列。
解释:药物之间有阴阳、子母、兄弟等配对关系,说明药物配伍的原理。
Small farms can have a big impact when given the right tools and knowledge.
I usually say what Ireally think. A great mistake nowadays, it makes one so liable to be misunderstood.
The greatest reward in research is knowing that your work can save lives.