The census form asks ten questions, including the number of people living in each house, their ethnic group and race.

VOA: special.2010.05.07

Those are two continuous strands that wind around each other to form the double helix.

这两股主链,相互缠绕形成双螺旋

耶鲁公开课 - 生物医学工程探索课程节选

Life in society what Adam and eve have to encounter now They now have to form villages,cities, start living among each other, and so on.

亚当与夏娃在社会生活中将要面临的是,建立村庄,建立城市,群居生活,诸如此类

耶鲁公开课 - 古希腊历史简介课程节选

And the best form of prevention, she says,is getting vaccinated each year against influenza.

VOA: special.2009.03.04

These junctions, these red dots here are actually made up of proteins, some are synthesized by one cell, some are synthesized by each other, and they lock together to form a very tight barrier, to form a tight junction between the two cells.

这些红点表示细胞连接,实际上是由蛋白质构成的,有些是由一个细胞单独生成的,有些是由两个细胞共同生成,使这两个细胞紧锁在一起形成紧密的屏障,并在两细胞间形成紧密连接

耶鲁公开课 - 生物医学工程探索课程节选

Workers created a wooden form covered with plaster for each part.

VOA: special.2009.06.29