That's because they could have been released from different heights with different initial velocities.

那是因为它们可能是从不同的高度,以不同的初速度被抛出的

耶鲁公开课 - 基础物理课程节选

We've a harvest holiday called Sukkot, where we actually sit outside, in this open structures that have natural coverings, branches, often where you can see the stars as a reminder of the time when the Israelites wandering in the desert, after they were released from slavery in Egypt.

我们会过一个收获的节日，叫做结茅节，那时，我们坐在外面，在自然的开阔天地,树枝是我们的屋顶,满天星斗让我们想起,以色列人摆脱了埃及人的奴役，在沙漠中流浪的岁月。

普林斯顿公开课 - 人性课程节选

These released particles can now go on and infect neighboring cells, they can travel in the bloodstream to infect cells at a distance and the virus spreads throughout a multicellular host.

这些释放出的病毒颗粒,可以继续感染邻近的细胞,它们可以随着血流去感染远距离的细胞,于是病毒可以在多细胞宿主体内全面扩散

耶鲁公开课 - 生物医学工程探索课程节选

In some cells they're recycled, that is the cell is able to take up the neurotransmitter after it's released and restore it, but most often there are enzyme systems inside the pre-synaptic membrane where those neurotransmitters are synthesized.

在一些细胞中神经递质可以循环利用,这些细胞可以吸收,已经释放出的神经递质并重新储存起来,但更常见的是突触前膜中含有酶系统,在此合成神经递质

耶鲁公开课 - 生物医学工程探索课程节选