主问题;主要问题

primal problem的用法和样例：

例句

Our principal problem is lack of time.我们的主要问题就是缺少时间。
The article touched on the main problem.文章提到主要问题。

BBQ: Definitely a Guy Thing

BBQ: Definitely a Guy Thing A three-day weekend, plenty of sunshine heading our way, and, zippity-doo-dah, out roll the barbeque grills, manned, by and large, by men. It is with that 1)gender-non-neut

发表于:2018-11-28 / 阅读(163) / 评论(0)

疯狂英语2004年

TED演讲：怎样用科技改造人体?(2)

I'm fascinated with the idea of what happens when you merge biology with technology, 我非常着迷于这点子，要是把科技和生物学融合在一起会发生什么， and I remember reading about this idea of being able to reprogram biology,

发表于:2018-12-02 / 阅读(80) / 评论(0)

TED演讲教育篇

英语灵异故事-The 6th Floor 03 6楼 03

[00:22.41]The 6th Floor [00:31.58]6楼 [00:42.61]Upon feeling this hand I froze and was terrified, [00:47.54]not knowing what move I should make next, [00:51.08]when the voice said, much more forcefully this time: [00:54.60]No! Where are you going? [0

发表于:2018-12-11 / 阅读(83) / 评论(0)

英语灵异故事

美语咖啡屋 Lesson 31: What is a Bonfire?

Y: 各位听众好。欢迎收听美语咖啡屋。我是杨晨。 J: Hello everyone! I'm Jody! Welcome to American Cafe! Except today, we're not in the Cafe. Y: 没错。我们现在是树林里。不过

发表于:2018-12-19 / 阅读(124) / 评论(0)

美语咖啡屋

有声英文阅读-决战猩球

Plant of the Apes Fans of the original are ready to go ape over this summer's movie offering from Fox. Tim Burton's Planet of the Apes is said to be neither a remake of the 1968 classic of the same na

发表于:2018-12-31 / 阅读(49) / 评论(0)

有声英文阅读

爱的力量 the power of love-心灵鸡汤

Jackie Lantry is a part-time hospital clerk in Rehoboth, Mass. She and her husband have adopted two girls and two boys from China. When Jackie asked her children what they believed in, they said family. Jackie Lantry是美国麻省利河伯镇的一位

发表于:2019-01-03 / 阅读(56) / 评论(0)

趣味英语

TED演讲:科技并没有改变爱为什么?(3)

There's no question that technology is changing the way we court: 可以肯定的一点是，科技正在改变人类的求爱方式： emailing, texting, emojis to express your emotions, sexting, liking a photograph, selfies. 电子邮件、短信、表

发表于:2019-01-03 / 阅读(57) / 评论(0)

TED演讲科技篇

SSS 2012-03-14

This is Scientific Americans 60 Second Science, I'm Karen Hopkin As voters vacillate among the contenders for the Republican nomination, it may matter less what the candidates say than how they sound when they say it. Because a new study shows that v

发表于:2019-01-08 / 阅读(92) / 评论(0)

Scientific American(三)月

英语热词：没事儿总爱瞎捣鼓？

大家现在都喜欢说自己很忙，有些人是真的在忙着做一些实事，而有些人可能是在瞎忙。他们一刻不闲着，来回转悠，什么都要过问，但其实，他们并没有做出什么实际的贡献。 Dude-fussing is

发表于:2019-01-08 / 阅读(78) / 评论(0)

英文语法词汇

TED演讲:什么会导致口臭(2)

For example, they'll break proteins into their component amino acids 比如，它们会把蛋白质分解成氨基酸成分， and then break those down even further into various compounds. 然后再把这些更进一步分解成各种化合物。 So

发表于:2019-01-17 / 阅读(66) / 评论(0)

TED演讲教育篇

英语故事:如果是你,你愿意放弃什么?

It all began with a stop at a red light. Kevin Salwen, a writer and entrepreneur in Atlanta, was driving his 14-year-old daughter, Hannah, back from a sleepover in 2006. While waiting at a traffic light, they saw a black Mercedes coupe on one side an

发表于:2019-01-17 / 阅读(88) / 评论(0)

英语美文

乔布斯传第45期:探寻(2)

Jobs did in fact find a teacher right in his own neighborhood. 事实上，乔布斯确实在他洛斯阿尔托的家附近找到了一个导师。 Shunryu Suzuki, who wrote Zen Mind, Beginner's Mind and ran the San Francisco Zen Center, 《禅者的初

发表于:2019-01-22 / 阅读(65) / 评论(0)

乔布斯传

乔布斯传第46期:探寻(3)

To Jobs, this seemed preferable to talk therapy because it involved intuitive feeling and emotional action rather than just rational analyzing. 在乔布斯看来，这一疗法比谈话疗法要好，因为这其中包含了直观的感受和情感上

发表于:2019-01-22 / 阅读(61) / 评论(0)

乔布斯传

美丽新世界Brave New World 第3章(8)

Of course he does. Trust Henry Foster to be the perfect gentlemanalways correct. 当然会有的。要相信亨利福斯特是个十足的君子永远不会出错， And then there's the Director to think of. You know what a stickler 何况还要考虑

发表于:2019-01-29 / 阅读(55) / 评论(0)

美丽新世界

英语听书《白鲸记》第165期

I shall ere long paint to you as well as one can without canvas, something like the true form of the whale as he actually appears to the eye of the whaleman when in his own absolute body the whale is moored alongside the whale-ship so that he can be

发表于:2019-01-29 / 阅读(79) / 评论(0)

白鲸记

打哈欠真的会传染吗？

人们常说打哈欠会传染，每次你一打呵欠，周围的人也会跟着打哈欠。难道哈欠真的可以传染，还是仅仅是巧合而已？我们来看看神经学家是怎么说的吧！ A yawn is an instinctive behavior: You don't

发表于:2019-02-07 / 阅读(67) / 评论(0)

阅读空间

英语听书《白鲸记》第189期

But what most puzzled and confounded you was a long, limber, portentous, black mass of something hovering in the centre of the picture over three blue, dim, perpendicular lines floating in a nameless yeast. 但是最使人大惑不解的是:在那张画

发表于:2019-02-17 / 阅读(62) / 评论(0)

白鲸记

咱们裸熊第34期:千层面

Ice bear comes prepared. 白熊是有备而来的。 Ooh!No. That's cheating. Away! No more processed snacks for us, gang. We'll be living off the land, just like mother nature intended. 哦！不行，那是作弊。扔掉！不能再有人工加工食

发表于:2019-02-19 / 阅读(119) / 评论(0)

咱们裸熊

英语PK台第500期:一枚改变命运的耳环

Around twenty years ago I was living in Seattle and going through hard times. I could not find satisfying work and I found this especially difficult as I had a lot of experience and a Master's degree. 大约二十年前，我住在西雅图，经历着

发表于:2019-02-23 / 阅读(62) / 评论(0)

英语PK台

英语听书《白鲸记》第806期

By the merest chance the ship itself at last rescued him; 就在这千钧一发的时分，那艘大船终于把他救起； but from that hour the little negro went about the deck an idiot; such, at least, they said he was. 可是，打那时起，这

发表于:2019-02-25 / 阅读(107) / 评论(0)

白鲸记

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

a cat in the meal

a hostages to history

anopheles (anopheles) bengalensis