If a pig had wings, it could fly.
猪要是长了翅膀也会飞上天。
She felt glad that she caught the bird before it could fly away.
她感到快乐由于鸟儿未飞走就被她抓住。
It had four long tail feathers but there is little evidence that it could fly.
它有4条长尾羽但仍然几乎没有证据证明它会飞。
As it lifted off the ground it realized it could fly and began to soar in the air.
当它从地面升腾时，它意识到它可以飞，然后它开始凌空翱翔。
Teacher question: In addition to aircraft, spacecraft, rockets could fly, the world what it could fly?
老师问：除了飞机，飞船，火箭能飞，世界上有什么可以飞？
The turtle wished that it could fly, really high into the sky, over rooftops and then dive, deep into the sea.
小海龟希望自己可以飞起来，飞到相当高的天上，比天花板还要高！
It could fly freely as an eagle in the valley of virtual world and land on the top as well as diving down the abyss.
他可以在虚拟世界中如同一只雄鹰在大峡谷中自由飞翔，登陆峡谷顶峰，潜入峡谷深渊。
I feared change, until I saw that even the most beautiful butterfly had to undergo a metamorphosis before it could fly.
我害怕变化，直到我看到，哪怕最美丽的蝴蝶也是经过蜕变才能展翅飞翔。
My student hang glider was almost as low concept as Cayley's, and though I knew it could fly, control clearly remains an issue.
我的这个悬挂式滑翔机和凯利的发明在原理上是差不多的，所以尽管我知道它能够飞起来，但怎么控制它对我来说仍然是个问题。
I picked up the torn wing and the butterfly and I spat on it's wing and tried to get it to stick back on so it could fly away and be free before the house parent came back.
我捡起被扯掉的翅膀和那只蝴蝶，我在它的翅膀上吐唾沫，试图把它粘回去，这样它就能在舍监回来之前飞走、重获自由。
As a child he had thought he could fly, if he willed it enough.
他小时候曾经以为，只要有足够决心，想要飞就能飞起来。
When the teacher asked why she did so, Lan said if her house could fly, it wouldn't fall down in an earthquake.
老师问到她为什么这样做时，兰说如果她的房子会飞，地震时就不会倒塌了。
The king called all his falconers together and ordered them to try every way they could to make it fly.
国王把所有的驯鹰师召集到一起，命令他们想尽一切办法让它飞起来。
It was a very wonderful trunk; no sooner did any one press on the lock than the trunk could fly.
这是一只很滑稽的箱子。一个人只须把它的锁按一下，这箱子就可以飞起来。
And what would it feel like to fly to prove you could?
还有飞起来的感觉如何，是想证明你能飞吗？
But it does suggest feathers may have helped promote life in the trees, even for creatures that could not actually fly.
但是，这的确说明对于居于树上、即使是那些根本不能飞的树栖生物来说，羽毛可能真的有助于它们的生活。
They were right. He could fly higher, and it was time to go home.
他们说得对，他能够飞得更高，现在是回家的时候了。
The Wright Brothers were ignorant enough to think that man could fly and confident enough to make it happen.
怀特兄弟无知到认为人可以飞，自信到让这个想法发生。
For asteroids too big for a robot to handle, a large spacecraft could fly near the object to act as a gravity tractor that deflects the asteroid's trajectory, sending it toward Earth.
如果行星对于机器人来说比较大的话，也可以使用一艘大型的宇宙飞船将行星拉离原有的轨道，而向着地球的方向前进。
Redesigned with aero engines and larger wings, it could be made to fly at about 900 kilometres per hour with its nose angled up by about 5 degrees, Hawkes says.
要是重新设计一番，将它的翅膀加大，用航空发动机替代现有发动机，向上倾斜5度角飞行，每小时它大概能飞900公里，霍克斯说；
They had sent up the ScanEagle, a kind of model airplane with cameras; you could hear it at night buzzing around like a big fly.
他们已经派出了“扫描鹰”，一种带摄像头的模型飞机；在晚上，你能听见他们像苍蝇一样的嗡嗡作响。
Letting fly those paper airplanes might be okay in a virtual classroom, but it could get you into real trouble in a real one.
在虚拟教室中放飞纸飞机是没问题的，不过如果在现实生活中这样做你可是会遇到麻烦。
With a sort of reverence the Daisy looked up to the bird that could fly and sing, but it did not feel envious.
怀着一种崇高的敬意，小雏菊抬头望向那只能飞能唱的鸟儿，却没感到一点妒忌。
A fish would never be happy living on land, because it was made for water. An eagle could never feel satisfied if it wasn't allowed to fly.
鱼绝不会喜欢住在陆地上，因为他是为水中生活而被造的，你若不许鹰展翅飞翔，他必然无法满足。
Without its six fly-bys—which used the gravitational fields of the planets involved to counter that effect—Messenger could not have slowed sufficiently to allow it to drop into its intended orbit.
没有这六次“飞经”（利用各行星重力场的作用），就没办法使信使号降到能滑进水星轨道的速度。
It sang of the happy days when it could merrily fly about, of fresh green corn in the fields, and of the time when it could soar almost up to the clouds.
他歌唱着当初他快乐地到处飞的日子，歌唱着田野里鲜绿的谷粒，歌唱着他向云朵翱翔的时候。
For asteroids too big for a robot to handle a large spacecraft could fly near the object to act as a gravity tractor that deflects the asteroid's trajectory sending it toward Earth.
对于机器人无法捕获的较大的行星，则派一艘大型宇宙飞船接近，利用重力牵引使行星偏离轨道，飞向地球。
Nonetheless, if events called for it, women could fly combat missions.
尽管如此，如果国家确实有需要，她们还是能接受战斗任务的。
Nonetheless, if events called for it, women could fly combat missions.
尽管如此，如果国家确实有需要，她们还是能接受战斗任务的。
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