对三头阿拉斯加的黑熊的心率追踪显示出它们在冬眠前的平均每分钟 55 下降低到了冬天里每分钟飘忽不定的 14 下。

Heart rate tracking for three of the Alaska bears showed a drop from 55 beats per minute on average before hibernation to 14 erratic ones per minute in winter.

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研究人员正在改进衡量教师全年表现的系统，并且通过三年的数据，通常可以判断出哪些教师表现不佳。

Researchers are improving systems to measure a teacher's performance throughout the year, and, with three years of data, it's usually possible to tell which teachers are failing.

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第三个风险是，消费者可能会推断出预期的结论，但对其推论的有效性提出质疑。

A third risk is that consumers may infer the intended conclusion but question the validity of their inference.

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The Magi here are, again, an image, a kind of visionary symbol, an image available "in the mind's eye" at all times.

这儿，三圣贤又是个意象，一个幻想出的标志，时时存在于大脑中的一个意象。

耶鲁公开课 - 现代诗歌课程节选

Well,you can just--an engineer will just sit there and isolate that second of sound and then give a "times three" command and "boom," well,look at Pavarotti hold out that note.

嗯，你可以想象，工程师会只坐在那里，分离出的第二个声音,然后给了三拍命令和砰“,好吧，看帕瓦罗蒂能拖出那个音。

耶鲁公开课 - 聆听音乐课程节选

There were some twelve to fifteen different widths of railroads in the Northern states alone by the 1850s, and you could go into one town on a gauge, i don't know, three feet wide but on the other side of town it would come out four feet wide.

在五十年代,单就北方州的铁道,就有十二到十五种不同的轨距,你可能在一条三英尺宽的铁道上进镇,但在另一边出镇时,它变成四英尺宽了

耶鲁公开课 - 美国内战与重建课程节选