endofunctor (plural endofunctors)
(category theory) A functor that maps a category to itself.

NPR 2009-03-27

From NPR news in Washington. I'm Jack Speer. A key Senate committee has sighed off on President Obama's budget blueprint setting the stage for debate on the 3.6 trillion dollars spending package some time next week. Approval by the Senate Budget Com

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2009年NPR美国国家公共电台3月

SSS 2009-12-29

Could there be a substance that both gives us the munchies and can help combat obesity? There may indeed be, according to research published in the Proceedings of the National Academy of Sciences. The Monell Center in Pennsylvania partnered with Kyus

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Scientific American(十二)月

Funiculi, Funicula

Some think the world is made for fun and frolic And so do I, and so do I Some think it well to be all melancholic To pine and sigh, to pine and sigh But I, I love to spend my time in singing Some joyo

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VOA标准英语2014年(三月)

VOA慢速英语2012 PEOPLE IN AMERICA - Cliff Robertson, 1923-2011: Award Winning Actor, Writer, Producer and Director

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2012年VOA慢速英语(二)月

have fun

[00:00.00]16.Have fun. [00:03.20]玩得愉快. [00:06.40]Have fun. [00:08.63]玩得愉快. [00:10.87]Have a nice trip. [00:13.09]旅途愉快. [00:15.31]Have a good vacation. [00:17.74]假期愉快. [00:20.17]Have a good time. [00:22.69]玩得愉快.

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Science and technology. 科技。 Exercise and addiction. 锻炼也会上瘾。 Fun run. 奔跑的奥秘。 People, it seems, have evolved to be addicted to exercise. 人类似乎在进化过程中对锻炼上瘾了。 AS THE legions of gym bunnies a

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CNN 2010-11-04

CARL AZUZ, CNN STUDENT NEWS ANCHOR: There's an old saying: It's not what you know, it's who you know. It might also be how you act. We're gonna make sense of that in just a bit. I'm Carl Azuz. Welcome to CNN Student News! First Up: Midterm Elections

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CNN2010年(十一)月

CNN 2011-02-06

Fridays are awesome! Just like the students and teachers at Ron Clark Academy, where I had the privilege of speaking yesterday. I'm Carl Azuz, bringing you 10 minutes of headlines, leaving out the commercials. Let's go ahead and get started. The fina

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CNN2011年(二)月

NPR 2009-08-02

Iran's state-run television station says three American tourists have been arrested after entering the country from northern Iraq without permission. The State Department is looking into the reports, as NPR's Allison Keyes reports. The three were re

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2009年NPR美国国家公共电台8月

Actor or actress?

BBC Learning English Weekender Actor or actress? Amber:Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we consider a linguistic dilemma - should we call a woman who acts an actress? Does the use of the word actor

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What makes people dizzy when they spin? Rolling down a hill or spinning around in endless circles causes dizziness or vertigo because hair-like sensory nerve cells in our ears send wrong messages to our brain. The motions of our bodies are detected b

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阅读空间

Directors Guild of America unveils nominees

LOS ANGELES, Jan. 8 (Xinhua) -- The Directors Guild of America (DG) on Tuesday handed out nominations to elite directors including Steven Spielberg and Ang Lee who are viewed as front- running contenders for best helmer of 2012. Ben Affleck earned a

发表于:2019-02-13 / 阅读(473) / 评论(0)

英语新闻

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