It's a, Ascot is a... It's a venue for horse racing and sort of three days every year.

它是赛马比赛的场地，比赛每年都有，持续三天。

英国皇家赛马会 - SpeakingMax英语口语达人

It began to infiltrate other disciplines and was in general a high-spirited horse for that certain period of time.

它逐渐渗入到其它学科,总之是那个时代的一匹黑马。

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Even there, a horse is not really a rigid body, unless it's been dead for a long time.

马甚至都不是真正的刚体,除非是死了很长时间了

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In the grammatical sense, this word is the means or principal of predication whereby we say one thing is another thing: the mare is the female of the horse, for example.

从语法的角度来看，is这个词是,我们声明一个东西是另一个东西的方式或者？委托：,例如说，母马是马中的雌性。

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