They appear red. Light waves from an object speeding toward you will have shorter wavelengths.

VOA: special.2009.04.29

The way that they appear in your body tells the immune system something about where they came from.

抗原在体内出现的方式,向免疫系统表明了抗原的来源

耶鲁公开课 - 生物医学工程探索课程节选

They appear in food in pretty small amounts which is why they're the micronutrients;, but they're vital for health, so if you're deficient in micronutrients you've got big problems.

它们在食物中所占比重很小,这也是称它们为"微量元素"的原因,但它们对健康的意义却是至关重要的,如果缺乏微量元素的话会很糟糕

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

However, the symptoms may also become worse each time they appear.

VOA: special.2009.01.06

There are, of course, dozens of figures taken from the texts of classical mythology who are alluded to throughout the first two books, but invariably they appear, just as Tantalus does in this very passage, within the context of a simile.

当然，这部作品有很多人物是取材自,经典神话故事，他们是用来表达隐喻的,贯穿着前两册书，他们始终出现，就像丹达罗斯在这一诗篇中，给予诗内容一种喻示。

耶鲁公开课 - 弥尔顿课程节选

If they appear to have symptoms or if they express that they have symptoms, we will immediately isolate them,".

VOA: standard.2009.04.30

Now, don't be distracted by the fact that they already appear to be sorted.

现在，貌似它们是有序的,但不要被这一事实干扰。

哈佛公开课 - 计算机科学课程节选

"...amongst older patients who receive adjuvant chemotherapy, they appear to be tolerating the treatment as well as younger patients who receive the treatment."

VOA: standard.2010.03.18

They don't appear to worship any god or goddess that you can see.

他们似乎不信奉你所指的神祇。

耶鲁公开课 - 新约课程节选

And they appear to zoom in on classes of language.

VOA: standard.2010.05.05

If someone is detained because they appear ill, a medical expert from the Centers for Disease Control and Prevention comes to the scene to check them and, if necessary, send them back over the border.

VOA: standard.2009.04.30

Still,doctors say it is possible that such events might cause symptoms of Parkinson's to appear earlier than they would have.

VOA: special.2009.04.07

They said tests in mice showed that their new vaccines are safer than live-virus vaccines and appear to work just as well.

VOA: special.2010.07.12

They say babies should be examined when their first teeth appear -- usually at around six months.

VOA: special.2009.03.11

But they also found that stressful events themselves did appear to increase the risk for depression.

VOA: special.2009.06.24

Signs of the disease appear in victims ten to fifteen days after they are bitten.

VOA: special.2010.04.20

He says holographic technology can make people appear in places where they have never been.

VOA: special.2010.11.15

Updates appear instantly in a list form as they are written.

VOA: special.2009.02.06

They always appear to be busy, moving around their homes,or hives.

VOA: special.2009.06.28

He says the images they gathered appear very promising.

VOA: special.2010.06.29

Republican lawmakers appear skeptical, but Republican governors say they are sharing ideas with their Democratic counterparts on the state level.

VOA: standard.2010.02.22

U.S.air travelers this busy holiday season appear divided over whether they would want to submit to body scanning.

VOA: standard.2009.12.30

"We know that they rely on all sorts of Palestinian sources many of whom have a vested interest in making the numbers of civilian casualties appear higher than they are."

VOA: standard.2009.09.09

"When they are marginalized, when they are mistreated, when they are ignored, when they are demeaned, the progress is not possible, no matter how rich and well-educated the elite may appear."

VOA: standard.2009.09.25

Although the attacks appear religious in nature, political analysts here say they are more symptomatic of conflicting economic and political pressures on the leading government party, the United Malays United Malays National Organization.

VOA: standard.2010.02.24

"they would like to receive a message that uses some kind of code, and instead of sending a message that reminds them of their pill, they would like a motivational message, like for example, 'it's time for your life.'" Services like that have been shown to work in low-income countries, and now they're starting to appear in richer countries.

VOA: standard.2010.02.24