蝙蝠加入了鸟群。
Why does Bruce Wayne spend millions dressing up as a bat?
为什么布鲁斯·韦恩要花数百万美元打扮成蝙蝠的样子？
The European researchers studied 493 bats from four bat species.
欧洲的研究人员研究了源于四个物种的493只蝙蝠。
He put his hoop away, and his bat; there was no joy in them any more.
他收起铁环和球棒；这些不再能给他带去快乐了。
I want a flower, a spider, a black cat, a bat, a pumpkin, a ghost or a witch.
我想画一朵小花、一只蜘蛛、一只黑猫、一只蝙蝠、一个南瓜、一个鬼、一个巫婆。
So the bat sends out these pulses, very focused bursts of sound, and echoes bounce back.
所以蝙蝠发出这些脉冲，一种非常集中的声波，然后回声就会反弹回来。
It is technically incorrect to talk about bat "radar", since they do not use radio waves.
蝙蝠“雷达”这个用语在技术上是错误的，因为它们不使用无线电波。
He had dropped all of the books he was carrying, along with a baseball bat and several other things.
他把自己携带的所有书本连同棒球棒和其他一些东西都丢了。
Last week, the group of scientists said they had found important biological qualities in some bat species.
上周，这组科学家表示，他们在一些蝙蝠物种中发现了重要的生物特性。
They can detect ultrasound; this means that when a bat approaches, the moth can detect the bat's presence.
它们可以探测到超声波；这意味着当蝙蝠靠近，飞蛾可以察觉到它的存在。
Around streetlights in leafy suburbs, what often seems like a moth at first glance may, in fact, be a small bat.
在绿树成荫的郊区，街灯周围经常有乍一看像是飞蛾的东西，事实上可能是一只小蝙蝠。
The truth is that all 1,100 bat species can see and often their vision is pretty good, although not as excellent as other night-hunting animals.
事实上，所有1100种蝙蝠都能看见东西，而且视力往往相当好，只是不如其他夜间狩猎动物那样出色罢了。
Because of their narrow bandwidth, CF signals portray only the target's presence and, in the case of some bat species, its motion relative to the bat's.
因为它们的频宽很窄，CF信号只能描绘目标的存在，而对于一些种类的蝙蝠来说，CF 信号还能描述目标相对于蝙蝠的运动。
In this process of transmission and reflection, the sounds are changed, and the changes in the echoes enable the bat to perceive features of the target.
在这个传递和反射的过程中，声音发生了变化，回声的变化使蝙蝠能够感知到目标的特征。
For example, one echo they quickly identify is the one they associate with a moth, which is common prey for a bat, particularly a moth beating its wings.
例如，他们很快就能识别出与飞蛾有关的回声，飞蛾是蝙蝠的常见猎物，尤其是扑打翅膀的飞蛾。
Anyway, as I were saying, by analyzing these echoes, the bat can determine, say, if there is wall in a cave that it needs to avoid, and how far away it is.
总之，就像我刚才讲的，通过分析这些回声，蝙蝠可以确定，比如说，洞穴里是否有需要避开的墙壁，以及它的距离有多远。
A cave bat, which regularly lives on a hard stone ceiling, is more careful about its landing preparation than a bat more accustomed to landing in leafy treetops.
洞穴蝙蝠通常生活在坚硬的石头天花板上，它比习惯降落在枝叶繁茂的树梢上的蝙蝠要更小心地做好着陆准备。
She didn't bat an eyelid when I told her my news.
我把我最近的事告诉她时，她一点也不为所动。
He learned right off the bat that you can't count on anything in this business.
他马上就认识到在这件事上你不能指望任何事物。
I enjoy playing badminton. When I'm running with a bat in my hand, I don't worry about anything.
我喜欢打羽毛球。当我拿着球拍跑动时，我感觉无忧无虑。
It was a long silence before Mom said, "Honey, someday you'll be beating those boys off with a bat."
过了好长一段时间，妈妈才说：“亲爱的，总有一天你会用球棒把那些男孩赶走的。”
The players use two things: one long stick, called a danda and a short egg-shaped bat, called a gilli.
玩家使用的装备有两种，一种是长棍，叫做丹达，另一种是卵圆形短棒，叫做吉利。
Could you please lend me your ping pong bat?
你能把你的乒乓球拍借给我吗？
Based on its body size, a bat-like the greater mouse-eared bat would be expected to live four years.
根据它的体型，像大耳蝠这样的蝙蝠可以活4年。
The girls were waiting for their next turns at bat during practice, stamping their feet to stay warm.
女孩子们在练习中等待下一轮的击球，还不停地跺脚来暖和身体。
The girls on the Wesleyan Academy softball team were waiting for their next turns at bat during practice.
卫斯理亚学院垒球队的女孩们在练习中等待着下一轮击球。
When they stop beating their wings, they'd be much harder for the bat to distinguish from a leaf or some other object.
当它们停止拍打翅膀，蝙蝠就很难将它们与一片树叶或者其他什么东西区分开。
The broadband FM signals and the narrowband CF signals travel out to a target, reflect from it, and return to the hunting bat.
宽带FM信号和窄带CF 信号传输到目标，从目标反射回来，然后返回猎蝠。
The bat judges distances by a kind of echo-location.
蝙蝠用一种回声测定法来判断距离。
La Chauve-Souris (The Bat) was a touring revue during the early 1900s.
《蝙蝠》是20年代90年代初期的一个巡回讽刺歌舞剧。
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