In an undated picture, a mock-up of the A-12 spy plane sits perched upside down on a testing pylon at Area 51-part of radar tests to reveal revealed how visible, or invisible, the design was to radar.

在一张未标明日期的图片中，一架实物模型的A - 12间谍飞机倒挂着停放在51区的一个测试塔上，这是为了测试该飞机的外观在雷达上可视或不可视的程度。

youdao

She rotated it to the right way up and then turned it upside-down again.

她把它转到合适的位置然后又把它上下颠倒了。

youdao

He said his suspended garden started as an entertaining summer project for him and his three children but has become more of a scientific pursuit: "is upside down better than right-side up?"

他说他的空中花园开始是为了给自己和三个孩子找乐子的夏季节目。但是现在有更多的科研意义了：“头朝下长得比头朝上更好么？”

youdao

And he picked up Dan'l and turned him upside down and out came a whole lot of bullets.

VOA: special.2009.08.29

If you think of these kind of like trays in a cafeteria, right, that are kind of upside down, and by default, they're stacked from the floor on up and up and up.

如果你想象这种自助餐厅的托盘，对的，那有点混乱的，默认的，它们从地板开始往上堆起来。

哈佛公开课 - 计算机科学课程节选

This is important because this molecule here, deoxyribose, is not the same upside down as it is - it's not symmetrical upside down and right side up, it's different because the 5' carbon's either pointed up or pointed down.

这很重要,因为对脱氧核糖来说,不都是像这样自上而下的,不是对称的自上向下或全部向上的,长链不同是由于,5'碳向上或者向下的指向不同

耶鲁公开课 - 生物医学工程探索课程节选

He also upped his 2008 earnings projection to 24 cents a share from 22 cents, with upside potential up to 26 cents a share.

FORBES: Magazine Article

Look for more upside, up toward 8 short-term.

FORBES: Three Stocks To Buy, Three To Short In This Market

But the upside of growing up?

BBC: Daily deal: Vermont fairy-tale