Proctor and Gamble signed on as a U.S.Olympic Team sponsor last September, but it was only last month that the U.S.-based company announced it would sponsor a P&G Family Home at the Vancouver Olympics for TEAM USA.

VOA: standard.2010.02.20

The red blood cells that carry oxygen only live within your circulation for about a month and so you have to continually be replacing cells that are dying and so there are cells that are proliferating.

携带氧的红细胞,在你的循环系统中的寿命只有一个月,因此你必须持续不断地更新衰老的细胞,所以就有在增殖的细胞

耶鲁公开课 - 生物医学工程探索课程节选

The red blood cells that carry oxygen only live within your circulation for about a month and so you have to continually be replacing cells that are dying and so there are cells that are proliferating.

携带氧的红细胞,在你的循环系统中的寿命只有一个月,因此你必须持续不断地更新衰老的细胞,所以就有在增殖的细胞

耶鲁公开课 - 生物医学工程探索课程节选