It's made of strong metal, it's got very thin slits to be able to see straight ahead, covered up; everything else is covered up, a good one will cover your neck as well.

头盔是坚固的金属制成,正面有一条很细的开口能让士兵看到前方,左右两边都包住,剩下所有地方都包住,好一点的头盔甚至能保护颈部

耶鲁公开课 - 古希腊历史简介课程节选

This is boring. In fact, you can do some nice things to prove what is the class of functions you can compute with straight-line programs, and what you'd see if you did that is, it's not particularly interesting.

这很无聊，实际上，你可以通过做一些很有趣的事情,来证明你可以通过直线程序,来做很多功能，但是你也看到我们之前讲过的了，这不太有趣。

麻省理工公开课 - 计算机科学及编程导论课程节选

And you can use mnemonics to try to keep these straight I see the T as sort of a plus sign.

你可以使用记忆术来记清它们,我将T看成是加号。

麻省理工公开课 - 固态化学导论课程节选

It's very hard to see very much and you can't anywhere pretty much but straight ahead.

戴上头盔后视野很有限,基本上哪儿都看不到,只能往前看

耶鲁公开课 - 古希腊历史简介课程节选

You see, that's a straight line.

你知道这是一条直线就可以了

耶鲁公开课 - 金融市场课程节选

I don't know how well you can see it in this figure here, is the slope of a straight line connecting these two points, and as the points come closer and closer, the straight line would become tangent to the curve.

我不清楚你们对于这个图像的理解,这条连接两点的斜线,随着两点距离逐渐缩小,两点连线会变成曲线的切线

耶鲁公开课 - 基础物理课程节选

So, this should be pretty straight forward, 100% let's see if we can get close to a 100% on this one, which is how many radial nodes does a 4 p orbital have?

很简单,让我们来看看这题，我们是不是可以接近%,对于一个4p轨道，它有多少个节点？,给你们10秒钟？

麻省理工公开课 - 化学原理课程节选

So here we have energy increasing on the y-axis, and you see this straight line at the bottom here is lower down on the graph, and that's the energy of a bound electron, so that's going to be a low stable energy.

这里我们看到能量沿着y轴增加，而且在这张图片上,这条直线在底部是降低的，那是一个束缚电子的能量，所以那是一个低稳态能量。

麻省理工公开课 - 化学原理课程节选