再生式二极管矩阵

The prowler strikes again! Jessie exclaimed as she jumped into the pool and grabbed one orange after another, which she placed on the edge of the pool. Benny, holding his nose, waded into the shallow end. He reached out and tried to catch an orange,

发表于:2018-12-06 / 阅读(32) / 评论(0) 分类 23 The Old Motel Mystery

The next morning the sun shone brightly, but there was a nice breeze. It was a good day to help Kay, Jessie thought. The plumber had brought the missing part the evening before, and now the water was turned on. A painter went by the window. All was g

发表于:2018-12-06 / 阅读(30) / 评论(0) 分类 23 The Old Motel Mystery

今天我们要讲的美国习惯用语是:apples and oranges。Apple 是苹果, orange是桔子。Apples and oranges这个习惯用语的意思是:两个非常不同的事物,无法相比。比如说,有的人认为男人比女人更聪明。

发表于:2018-12-16 / 阅读(68) / 评论(0) 分类 美国习惯用语

Oranges and lemons, Say the bells of St. Clement's You owe me five farthings, Say the bells of St. Martin's When will you pay me? Say the bells of Old Bailey. When I grow rich, Say the bells of Shoreditch. When will that be? Say the bells of Stepney

发表于:2019-01-09 / 阅读(350) / 评论(0) 分类 鹅妈妈童谣

STEVE INSKEEP, HOST: Generations ago, the Osage Indian Nation was forced to move. Not for the first time, white settlers pushed them off their land in the 1800s. The writer David Grann sees in that move the start of an astonishing and tragic story. D

发表于:2019-01-17 / 阅读(31) / 评论(0) 分类 2017年NPR美国国家公共电台4月

The store of pollen paints a picture of the plains of 13,000 years ago, a picture that looks very different from the open prairie grassland of today. But why did this region look so different back then? The ice sheets to the north, although retreatin

发表于:2019-01-23 / 阅读(75) / 评论(0) 分类 探索与发现2012年