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。
"The most successful companies are those that put their customers first."
跨越万里山川，拨开云雾前进；经历百次寒暑，踏着霜雨前行。
I'm not a politician, I'm an artist. I don't have to be politically correct.
The history of the world is the history of a few men who had faith in themselves.