音标：['pipәrәnæl] ；

n. [化]胡椒醛, 洋茉莉醛( 亦作piperonyl aldehyde)

n. A white crystalline substance obtained by oxidation of
piperic acid, and regarded as a complex aldehyde.

纯正英语一分钟-Pronunciation

Pronunciation is a funny thing. What pronunciation do you study? In England there are a hundred different accents but textbooks only teach one. What use is that? Actually, English teaching textbooks are pretty bad at teaching pronunciation. Look how

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The Final Frontier

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人与地方

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白日梦 Pipe dream 知不知道烟斗怎么说？很简单，仅用一个pipe就可形容这种一头带有小吹嘴的管状抽烟用具。当然，谈起pipe（烟斗），免不了会想到19世纪提着烟袋吸食鸦片的烟鬼们。短语pip

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购物英语对话

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购物英语对话

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A: Hi, where can I find a cheap cashmere sweater? B: How about an outlet? A: Great idea! B: Outlets give good deals. A: Thank you so much. B: You're welcome.

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购物英语对话

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A: Hello, where can I buy an inexpensive cashmere sweater? B: Maybe you should look around for an outlet. A: That is a wonderful idea. B: Outlets have more reasonable prices. A: Thank you for your help. B: No problem. Good luck.

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好听的英文歌曲

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流行英文歌曲

Pipe dream: 白日梦

Pipe dream: 白日梦知不知道烟斗怎么说？很简单，仅用一个pipe就可形容这种一头带有小吹嘴的管状抽烟用具。当然，谈起pipe（烟斗），免不了会想到19世纪提着烟袋吸食鸦片的烟鬼们。短语pi

发表于:2019-02-03 / 阅读(218) / 评论(0)

英语口语

CCTV9英语新闻：Pipe roofing completes in Gongbei tunnel

A key stage in the construction of Gongbei tunnel, which will connect south China's Zhuhai city with Macau, has been completed. Pipe roofing has now been installed to reinforce the tunnel, in one of the largest construction projects in China. The Gon

发表于:2019-02-13 / 阅读(246) / 评论(0)

cctv9英语新闻2015年

Veron to play in Argentina's fifth division

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学英语单词

accidental deaths

adrenogenital symdrome

agcy.

all rise

amorphous semiconductor

antidazzle driving mirror

boiler riveting machine