Every culture is going to have Pan Am smiles, happiness smiles, coy smiles, but the variation of that sort is something which will vary as a result of how you're raised and the people around you.

每一种文化都有问候式微笑，开心的微笑，腼腆的微笑，不同还在于,你是怎么被抚养大，你身边人如何。

耶鲁公开课 - 心理学导论课程节选

Also, this is a slight variation on the "I need" pattern. You can say "all I need is".

同样的，“I need”句型也会有些小的变形。你可以说“all I need is”。

I need 课堂 - SpeakingMax英语口语达人

The variation looks like this.

我改成这样

耶鲁公开课 - 基础物理课程节选

Lynda, let's go-- we should have the previous yeah-- we shoud be-- that's the next variation-- I confused--I confused Lynda there.

琳达,我们应该放之前那段,是的,我们应该,这是下一段变奏,我把琳达搞糊涂了

耶鲁公开课 - 聆听音乐课程节选

So, instead of having the periodic variation of water, or the periodic variation of air density here we're talking about an electric field.

不像水或者空气密度的,周期变化，我们这里,讨论的是电场。

麻省理工公开课 - 化学原理课程节选

And once you hit puberty, suddenly there's huge variation in the abilities you have to learn language.

一旦你到了青春期,学习语言的能力会在突然间,发生巨大的变化

耶鲁公开课 - 心理学导论课程节选

Yeah. Absolutely. A lot of emphasis, a lot of variation in tone, and the italics are part of the representation of that.

对，绝对是的，很多的强调，很多语气上的变化，而斜体字就是它的表示方法之一。

耶鲁公开课 - 1945年后的美国小说课程节选

He reasoned then that the charge, since he could vary voltage continuously but got a discontinuous variation in velocity, his conclusion was that the charge must be discontinuously attached to the droplet.

他推断出电荷，因为他可以不断地改变电压,但是得出了速度是在不连续变化着，他的结论是电荷,是间断地依附于液滴上的。

麻省理工公开课 - 固态化学导论课程节选

The water soluble vitamins tend to be used more immediately by the body not stored and excreted through the urine if consumed in excess, so the body can tolerate more variation in intake of these before you start getting toxicity than is the case with the vitamins on the right.

而水溶性维生素往往都立刻被身体所利用,不会被机体储藏,过剩部分由尿液排出,因此机体耐受过量水溶性维生素的能力,相比起右边这栏里的脂溶性维生素,可是要强得多了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Another situation where you can use the "It seems" variation pattern is

在另一种情况下，你也可以用"It seems"的变换形式，

It seems 课堂 - SpeakingMax英语口语达人

So we gonna back up in that previous variation Let's just see if we can pick up what the missing third part here.

我们要回到刚才的变奏,看看我们能不能捕捉到,缺失的第三部分

耶鲁公开课 - 聆听音乐课程节选

So, for example, we have this average level, and then it can go high where we have the peak, or it can go very low. We can also discuss sound waves, so again it's just the periodic variation of some property -- in this case we're talking about density, so we have high density areas and low density areas.

例如这是平均位置，在峰的位置水位高，在谷水位低，我们也可以,讨论声波它也是某种,量的周期变化，在这里我们,讨论的是密度,我们有高密度区和低密度区。

麻省理工公开课 - 化学原理课程节选