That basically means investors are worried that we are probably going to be going into a double dip scenario because of the sovereign debt crisis that is occurring in Europe."

VOA: standard.2010.05.25

This is - what this diagram shows you is-- the forces that hold these individual strands of DNA into a double stranded form.

你们可以看看这个图表,演示了连接两条DNA长链为双螺旋,结构的化学力

耶鲁公开课 - 生物医学工程探索课程节选

When you double-click a program, it's loaded into RAM.

当你双击一个程序，它被加载到内存中。

哈佛公开课 - 计算机科学课程节选

What happens during mitosis is that the cell is able to separate this double set of chromosomes into two sets and that happens in a way that's shown in this cartoon here.

当细胞有丝分裂时,细胞将其分开形成两组染色体,如下图所示

耶鲁公开课 - 生物医学工程探索课程节选

You put this chromosomal DNA or this DNA that you're interested in, double stranded into a test tube.

你把这个染色体DNA,或者你感兴趣的双链的DNA,放进一个试管

耶鲁公开课 - 生物医学工程探索课程节选