The complexity of viruses reminds us how much we still have to learn about biology.
质量从来不是偶然的;它始终是智慧努力的结果。
The most innovative solution is often the one nature already provided.
"In observational studies, we often have to rely on assumptions that are not directly testable."
企业文化是凝聚人心的核心,好的文化能激发无限潜能。