Last year the national program for playground safety gave the nation's playgrounds a grade of "C" for safety after visiting more than 3,000 playgrounds nationwide.

去年，国家游乐场安全计划在全国范围内走访了3000多个游乐场后，将国家游乐场的安全等级定为 “C” 级。

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For people born in the last 50 years or so, the C-14 test can by itself sometimes identify dates of both birth and death, Buchholz notes.

布赫兹指出，对于过去50年左右出生的人们，有时单凭碳14测试就能确认其出生和死亡日期。

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And the last one in the major pattern is a half step from B to C.

大调模式的最后，是一个从B到C的半音级。

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(Music) Those were comments from people who took part in the Breast Cancer 3-Day Walk held in Washington,D.C.,last month.

VOA: special.2009.11.02

And the last example that we're going to talk about is thionyl chloride, so it's s o c l 2. This is another good step forward, because now we actually have four different atoms in our molecule.

我们要讨论的最后一个例子,是氯化亚砜，就是硫，氧，氯，二，这又是一个进步，因为我们的分子中现在有四个不同的原子了。

麻省理工公开课 - 化学原理课程节选

So we talked about Mr. Bool briefly last week in this idea of true or false, but in C, you don't have a Boolean data type.

我们上周简短地谈论过Bool先生的,真假的逻辑思想，但是在C语言里，没有布尔数据类型。

哈佛公开课 - 计算机科学课程节选

Otherwise, not much has changed from the last C-GT I drove.

WSJ: 2013 Bentley Continental GT V8 Review: Get More From Less | Rumble Seat by Dan Neil

The Centers for Disease Control says up to 10, 000 people died from hep-C last year and that, by 2010, the annual death toll will overtake that of HIV.

FORBES: The Next HIV?

As of last close, C.

FORBES: Connect