最重要的动作是一侧到一侧，及上和下。
The most important movements are side to side and up and down.
人类思维分类是：黑和白，上和下，左和右。
Humans think in categories: black and white, up and down, left and right.
刷刷牙，上和下。
上和下还存在吗？
对于一个给定的维，有3个wgrow值要考虑：两个边(左和右，或者上和下)和child值本身。
Given a dimension, you have three wGrow values to consider: two of the sides (left and right, or top and bottom) and the child's value itself.
由于我们在宇宙里,并不知道什么是绝对的上和下，所以说上面的现象很有可能是,一些电子向上自旋引起的。
And since we don't know the absolute up and down in the universe, it is possible that some of the electrons may be spinning up.
这架飞机经受过零下65度和零上120度的考验。
The aircraft was subjected to temperatures of minus 65 degrees and plus 120 degrees.
建议你读一下房主保险单和汽车保险单上的小号印刷字。
You are advised to read the small print of homeowner and car insurance policies.
虽然地幔的热岩石是固体，但在地壳和地幔上覆岩石的巨大压力下，它像粘性液体一样流动。
Although the hot rock of the mantle is a solid, under the tremendous pressure of the crust and overlying rock of the mantle, it flows like a viscous liquid.
作为高中的预备班，在演讲日和报告中，这三个班被正式称为上、中、下二班。
To attach the preparatory to the senior school these three classes were known officially, on speech days and in reports, as upper, middle, and lower second.
在我的皮肤科医生的建议下，我每天都会在脸上和脖子上涂上防晒系数为15或30 的防晒霜。
For everyday, at my dermatologist's recommendation, I wear a sunscreen of SPF 15 or 30 on my face and neck.
在老师的鼓励和资助下，他们每周三下午都要上一节折纸课。
With the encouragement and the money provided by the teachers, they had a paper folding class every Wednesday afternoon.
通常情况下，自然灾害及其所造成的损害是很严重的，尤其是当你考虑经济上和物质方面的损失时。
Normally, a natural disaster and the damage it causes can be very severe, especially when you consider the financial and physical losses.
在父母的帮助下，伊万在社交媒体上要了更多的火鸡和配菜。
With his parents' help, Ewan used social media to ask for more turkeys, plus side dishes.
蝙蝠们遇到了一个技术上的难题：如何在没有光线的条件下认路和捕食。
Bats have an engineering problem: how to find their way and find their prey in the absence of light.
随着业内人士又将注意力重新集中在显示广告上，我想，趁此机会好好回顾一下所有购买和投放这种网络广告的不同机会。
With this new attention focused on display advertising, I thought it would be a good time to recap all the different opportunities for buying and placing this form of online advertising.
有机农业是一种相对而言尚未开发的资源，可以用来养活地球上的人口，尤其是在应对气候变化和其他全球性挑战的情况下。
Organic agriculture is a relatively untapped resource for feeding the Earth's population, especially in the face of climate change and other global challenges.
在强大而多样的动机驱使下，这次运动从荒野中建立起一个国家，并在本质上塑造了一个未知大陆的性格和命运。
This movement, driven by powerful and diverse motivations, built a nation out of a wilderness and, by its nature, shaped the character and destiny of an uncharted continent.
调试压机的另外一个优点就是在冲压前对模具进行定位(例如调整上模和下模)。
Another benefit of the tryout press is that it permits die spotting (i.e., adjusting the upper and lower dies) prior to stamping operations.
我描述了一下这家世界上最大的女孩和妇女组织全面转型的愿景。
I described the total transformation of the largest organization for girls and women in the world.
但是在动手之前，让我先大体上介绍一下事件和事件编程。
But before I do, let me write some words about events and event programming in general.
顺便说一下，这里这个-号实际上和，我们做交叉乘积的时候的方法是有联系的，我们在算第二项前面是-号。
By the way, this minus sign here is actually related to the way in which, when we do a cross product, we have a minus sign for the second entry.
花一小会儿时间回顾一下这张表上常被误用的单词和短语。
Take a moment and review this list of commonly misused words and phrases.
好，检查一下，如果我们把它和向量相乘，呃，我要不要写一下。我还是写在黑板上吧。
OK, let's check. If we multiply this with a vector, Well, maybe I should do that. Let me write it on the board.
绑在他手腕上的遥控器提供多种行动模式：“站”，“坐”，“走”，“上”和“下”(最后两种模式与爬楼梯相关)。
A remote control strapped to one of his wrists offers several modes of action: "stand", "sit", "walk", "ascend 'and" descend "(the last two being pertinent to climbing and coming down staircases)."
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