But wings are not perfect, and at some stage the air turns turbulent.
但大多机翼并不完美，在某个阶段会产生紊流。
The fried-chicken restaurant where I was working had a big rush just before closing one day, leaving us with nothing to sell but wings.
一天，我工作的炸鸡店在关门前出现了一阵抢购狂潮，结果除了鸡翅外所有的东西都卖完了。
Thee fried-chicken restaurant where I was working had a big rush just before closing one day, leaving us with nothing to sell but wings.
一天，我工作的炸鸡店在关门前出现了一阵抢购狂潮，结果除了鸡翅外所有的东西都卖完了。
You can train it to flap its wings to escape a situation but it's very difficult to get it to flap its wings for food.
你可以训练它扇动翅膀以逃避某种情况，但要让它扇动翅膀获取食物是非常困难的。
I have no wings. I wish I had, but I don't.
我没有翅膀，我希望我有，可是我没有。
But this has been impossible to check in real butterflies, because of the complexity of measuring the various forces acting on their wings and body.
但是，这在一只真正的燕尾蝶身上无法得到验证，因为测量各种对它们的翅膀和身体起作用的因素十分复杂。
But this new study shows that wings with a little flop can actually get more air-pushing lift from each flap.
但这项新的研究表明，有点向下弯曲的翅膀确实能从每次拍打中获得更多的空气挤压升力。
Their wings are not always obvious, but, as she told the incredulous man from the Daily Telegraph, angels sometimes show off their golden feathers to her.
“他们的翅膀并非总是那么明显。”但是她告诉满腹狐疑《每日电讯报》的记者说，天使经常向她炫耀他们金色的羽毛。
But when books are opened you discover that you have wings.
可是一打开书本，你会发现你有了翅膀。
But they may be as distinctive and marvelous as the much-studied, much-celebrated wings of butterflies and beetles.
但它们真的独一无二，令人惊奇，绝不逊于那些一直被赞美的蝴蝶和甲虫的翅膀。
We thought she chose wisely not to eat the wings, but this is probably not a legitimate personal injury claim.
我们认为她很明智地没有食用那个鸡翅，但是这或许不是一个合法的私人受伤案件。
It's quieter, but only slightly: the wind drowns out the engines as it buffets the tail and wings.
这只是更加安静，但只是轻微些：风扑打着尾翼和机翼的声音吞没了引擎声。
This means it can hover like a helicopter, but when flying forward can reduce the speed of the main rotor because the wings provide part of the lift.
这意味着它能像一架直升机那样作空中悬停，而在向前飞行时，又能降低主旋翼的速度，因为它的一对短翼提供了部分升力。
This means it can hover like a helicopter, but when flying forwards can reduce the speed of the main rotor and let the wings provide part of the lift.
这意味着它能像直升机一样悬停，但向前飞时可能减少主旋翼的速度并让这两个短翼提供部分提升力。
But something was wrong. The ends of the wings were not lifting.
但是，发生了一些状况——机翼的后部并没有抬升。
He himself had once been led into temptation and was going home with a woman, but having touched his scapular by chance, saw in a moment an angel waving white wings in the air.
他自己也曾受人引诱，跟着一个女人回了家，但在无意中摸到自己的肩胛骨后，他霎时间看见了在空中挥舞白色翅膀的天使。
Bending close, he points out blazes of russets and rich browns mixed with white on tiny but lovely wings.
他凑近一些指出那些可爱的小翅膀上带有红褐色与棕色夹杂着白色的闪光。
But in 2008, the firm found that the 787's carbon-fibre "wingbox", the internal fuselage structure the wings attach to, was not strong enough and needed stiffening with metal spars.
但是在2008年，公司发现内部机身结构与机翼结合处的787的碳素纤维“翼盒”，强度不够并且需要金属翼梁的加固。
Pigs don't have wings, but that's not because winged pigs once lost out to wingless ones.
猪没有翅膀，但这并不是因为曾经的有翅猪变成了无翅猪。
The plane's fuselage split in front of the wings, but did not separate from the plane.
位于机翼前端的机身部分断裂，但还未同飞机分离开来。
I mean we can't fly but we know if we move our 'wings' we will fly.
例如我们不能飞，但是我们知道挥动翅膀就可以飞起来。
This means it can hover like a helicopter, but when flying forwards can reduce the speed of the main rotor and let the wings provide part of the lift. Its propellers give the extra oomph.
立方直升机的这种配置让他可以像直升机一样盘旋，但在向前飞行时，主旋翼的转速可以将下来，让两侧的机翼提供升力，在此情况下，两台螺旋桨推进器就能发挥大作用了。
The wings of this aircraft are almost as big as those of an airliner, but they are covered in a film of solar cells that convert sunlight into electricity to drive its engines.
这架飞机的机翼几乎和那些客机的一样大，不过上面覆盖了一层太阳能电池板，其把阳光转换成电能来驱动引擎。
This was not the arm of flying bird, but it also differed from the wings of many ground-dwelling birds.
这并不是飞鸟的臂膀，但是，这不同于那些已知鸟类的翅膀。
In 2003, for example, a team of scientists studied wings on stick insects. They found that the insects' common ancestor had wings, but some of its descendants lost them.
举例说明，在2003年，一个科研小组的成员通过研究竹节虫的翅膀发现：竹节虫的共同祖先是有翅膀的，但是其中一些后代逐渐失去了翅膀。
The stick insects may indeed have evolved a new set of wings, but it is not clear whether this change appeared as reverse evolution at the molecular level.
竹节虫确实是重新长出了翅膀，但是还并不清楚在分子水平上这是不是逆演化。
But here in western Missouri, the sight of those familiar speckled wings against the September sky means something altogether different: hunting season has arrived.
但是，在九月的西密苏里，那些带斑点的翅膀在空中舞动，意味着狩猎季节的到来。
But here in western Missouri, the sight of those familiar speckled wings against the September sky means something altogether different: hunting season has arrived.
但是，在九月的西密苏里，那些带斑点的翅膀在空中舞动，意味着狩猎季节的到来。
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