As these experiments show, begging apparently provides a signal of need that parents use to make judgments about which offspring can benefit most from a feeding.
正如这些实验所显示的，乞求显然提供了一种需要的信号，父母可以利用这种信号来判断哪些孩子能从喂食中获益最多。
A red light is a signal of danger.
红灯是危险的信号。
A red light is usually a signal of danger.
红灯通常是危险的信号。
But this crossover is a signal of long-term value.
但是这个转换是一个长期的信号。
We attract more external peace, while radiating a signal of internal peace!
我们会有更多平静，也会释放出我们内部的平静。
It can be anall-purpose argument-ender or a signal of apathy. And it can reallybe annoying.
"Whatever"可在结束争论时使用，或者可用来表示漠不关心，这个词的确令人反感。
Be careful when handling a sudden attack of heartburn as it can be a signal of something even worse.
要小心处理突然袭击的心，因为它可能是一个信号的东西更糟糕。
According the Schindler, in those cases, the full, round non-99 price may send a signal of a better buy.
因此辛德勒认为，在有些时候，全价可能提示着商品的质量更好。
Obesity as a signal of unhealthy lifestyles cannot be masked, just as the high costs of care cannot be masked.
肥胖反映了不健康的生活方式，这是无法掩盖的，医护费用高昂也是无法遮掩的。
If anything, it was a signal of support for him, using the mot du jour and taking it to the next level with fashion.
如果真有什么含义，那也是一个支持他的信号，她利用了当前这个热词，通过时尚手法把它带入另一个层次。
Starting healthy new dating relationships also serves as a signal of kids' overall readiness to launch from the parental nest.
开始健康的新恋爱关系也是孩子基本准备好要离开父母的羽翼的信号。
I recognized Diana, at peace at last, fanning herself with a feather punkah, and perhaps sending me a signal of recognition.
我认出了Diana，她终于平静下来，正展开翎毛的羽扇，可能在给我相认的记号。
"Smile Beijing" was sent into space by China's first lunar probe satellite Chang 'e-i, which sent back a signal of the song on December 4, 2007.
月球探测卫星“嫦娥一号”曾搭载《微笑北京》，并于07年12月4日从太空传回这首歌曲。
If this number were to increase or decrease significantly in the upcoming year, it would be a signal of some underlying change in the company's ability to generate cash.
如果该数字在下一年剧增或剧减，这或许是该公司创造现金的能力要发生某种潜在变化的征兆。
It is a system that can amplify either a human warming influence or a natural one, making the task of disentangling a signal of human influence from other forces exceedingly tough.
这是一个可以增强人类对全球变暖的或者自然的影响的系统，又是从其它因素中将人类的影响分离出的非常艰难的系统。
This lava field just north of the Mýrdalsjökull ice cap serves as one of many monitoring sites to track ground deformation that could serve as a signal of an impending eruption of Katla.
这片位于米达尔斯冰盖北部的熔岩原是用来追踪地面形变的监测点之一，这里地面的形变可以被视为卡特拉火山喷发的前兆。
The reason for concern about India's widening current-account deficit is not that it heralds a financial crisis, but that it is a signal of how supply cannot keep pace with red-hot demand.
印度不断增长的经常帐户赤字让人担心，原因不在于它是金融危机的前兆，而在于它表明了面对呈白热化增长的需求，供给已难以为继。
Realistic signals are made by summing sine waves of lots of frequencies, so that after some finite number of wavelengths they interfere destructively and you get a signal of finite width and duration.
现实中的信号由各种频率的正弦波组成，因此，在有限的波长数后，它们会干涉相消，你就得到一个有限宽度和有限延续的信号。
The recall of Ambassador Alan Green is a public signal of America's concern.
艾伦·格林大使的召回是美国关注此事的公开信号。
In the process of formation, the material must have received an environmental signal that reflects a change in climate and that can be deciphered by modern physical or chemical means.
在形成的过程中，材料必须接收到环境信号，反映气候变化，并能被现代物理或化学手段破译。
The simple detection of a radio signal will be sufficient to answer this most basic of all questions.
对无线电信号的简单探测就足以回答这个最基本的问题。
The predictive signal is a steady rhythm of alpha waves emanating from the brain's right hemisphere, which are closely associated with relaxing activities.
预测信号是大脑右半球发出的稳定节奏阿尔法波，与放松身心的活动密切相关。
Garter snakes detect a chemical signal from earthworms—one of their favorite foods—via the VNO, and they use this signal to track their prey.
束带蛇通过 VNO探测到来自蚯蚓（它们最喜欢的食物之一）的化学信号，然后它们利用这个信号来追踪它们的猎物。
Garter snakes detect a chemical signal from earthworms—one of their favorite foods—via the VNO, and they use this signal to track their prey.
束带蛇通过 VNO探测到来自蚯蚓（它们最喜欢的食物之一）的化学信号，然后它们利用这个信号来追踪它们的猎物。
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