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1·This is the last question we'll see in class on the photoelectric effect, so hopefully we can have a very high success rate here to show we are all ready to move on with our lives here.

这是这个课上最后一个关于,光电效应的问题，所以希望,你们能有个高的通过率,来证明我们已经可以继续往下走。

2·In the Latin American and Caribbean region, 60 million people were lifted from poverty between 2002-2008 and a growing middle class boosted import volumes at an annual rate of 15 percent.

在2002到2008年间，拉丁美洲和加勒比地区有2000万人脱贫，不断壮大的中产阶级推动进口贸易额每年的增长达到15%。

3·The exchange rate is passed in from outside the class. It is not constructed inside the class.

汇率是从这个类之外传递进来的，并不是在类内部构造的。

4·We cannot afford the risk of losing a class of first-rate insecticides with no suitable replacements ready to step in and do the same job.

我们无法承受在失去这类一流杀虫剂的同时，没有适当的替代品加入进来并起到同样的作用。

5·It's a center for finance and media, but London may be best understood as a world-class city in a second-rate country.

金融和传媒中心，但也许对伦敦最好的理解可能是把它作为一个位于二流发达国家的世界级都市。

6·The move aims at ensuring millionaires pay a minimum rate of tax that at least matches that of middle-class families.

这项行动的目的在于确保百万富翁所缴的最低税率不低于中产阶级家庭。

7·Still, many experts say we don't need to raise the tax rate on the middle class; we just need to get rid of some of those despised loopholes (or beloved incentives).

尽管如此，许多专家表示我们不需要提高中产阶层的税率；我们只是要消除一些被忽视的税务漏洞(或者叫被深爱着的税务激励)。

8·South Caroline State University boasts a 60% internship rate for its 2010 undergrad class and it's no wonder why: the historically black college has great resources for students.

南卡罗来纳州州立大学2010年本科毕业生有60%有实习经历，难怪这所历史上的黑人大学有那么多的学生资源。

9·He anchored his faith to that, and was confident that the really first-class magazines would pay an unknown writer at least an equal rate, if not a better one.

他相信真正的第一流杂志是会给予一个无名作家同样的稿酬的，即使不能更多。

10·Such a rate is easy to achieve, even with old chips, but there is an additional burden when using Class D modulation.

这样的频率即使是用旧的芯片也很容易实现，但是当使用D类调制时会产生额外的负荷。