The safety and efficacy of a vaccine are the most important criteria in its development.
疫苗的安全性和有效性是其研发中最重要的标准。
When we protect biodiversity, we're protecting humanity's safety net.
我们讲述的故事塑造了我们生活的世界。
The only way to be truly satisfied is to do what you believe is great work.
Don’t tell me how good you make it; tell me how good it makes me when I use it.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.