The last one.Just follow along till you catch up. All right, guys, today we are gonna beobserving the behavior of planaria, aka flatworms.

VOA: standard.other

From next term we try to move it into the own term version of electromagnetism, which are up till now has been taught in the lecture-station format.

从下学期起我们将搬去,电磁学自己的实验室，现在这门课还是用,讲座-背诵型方式讲授。

麻省理工公开课 - 媒体、教育、市场课程节选

Let's say you have a teacher who gives you work that keeps you up till 5 in the morning sometimes.

假如你的老师，他布置的任务有时甚至能让你做到凌晨5点。

How long课堂 - SpeakingMax英语口语达人

Typically up till now, we've looked at things that can be done in sublinear time. Or, at worst, polynomial time. We'll now look at a problem that does not fall into that. And we'll start with what's called the continuous knapsack problem.

至今为止我们已经处理过,亚线性问题，最多也就是多项式问题,我们现在要看的问题则是不能用这些解决的,我们将要开始讲连续背包问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

I'd like to go by climbing a birch tree, And climb black branches up a snow-white trunk toward heaven, till the tree could bear no more, But dipped its top and set me down again.

我真想去爬白桦树，沿着雪白的树干，爬上乌黑的树枝，爬向那天心，直到树身再支撑不住，树梢碰着地，把我放下来。

耶鲁公开课 - 现代诗歌课程节选

One is that during the Second Empire, which was that regime of Napoleon III that lasted from 1852 to till he was really rounded up by the Prussians in 1870.

一个是法国当时正处于法兰西第二帝国时期,在拿破仑三世的统治之下,这段时期始于一八五二年,直到一八七零年他被普鲁士军队所俘虏

耶鲁公开课 - 1871年后的法国课程节选