苹果酸氢钙

The Worst Christmas Jobs 圣诞特辑 8

Well, that's limelight. What exactly was it? Well it was the burning of calcium oxide in a very intense flame. And when did the job of a limelighter begin? Oh, famously, the first recorded instance in

发表于:2018-12-07 / 阅读(31) / 评论(0)

圣诞特辑

Uses Hydrogen1 as Fuel2

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(74) / 评论(0)

VOA2003（上）-科技导航

我们该选择死亡吗？

I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indians and Pakistanis

发表于:2018-12-12 / 阅读(54) / 评论(0)

英语演讲

美国国家公共电台 NPR To Get Calcium, Navajos Burn Juniper Branches To Eat The Ash

DAVID GREENE, HOST: So getting calcium in your diet is essential to keeping your bones strong. Well, what do you do if you can't do dairy? A Navajo graduate student at Northern Arizona University got really interested in that question when he came ac

发表于:2019-01-16 / 阅读(54) / 评论(0)

2017年NPR美国国家公共电台8月

我们该选择死亡吗

December 30, 1954 I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indi

发表于:2019-02-09 / 阅读(45) / 评论(0)

英语美文

Obama signs "fiscal cliff" bill into law

WASHINGTON, Jan. 3 (Xinhua) -- U.S. President Barack Obama has signed a fiscal cliff bill into law that raises tax rates for the wealthiest Americans and extends tax cuts for most of the U.S. households, the White House said early Thursday. Obama sig

发表于:2019-02-18 / 阅读(41) / 评论(0)

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Aconitum dunhuaense

aculeatiflorus

anthropometric identification

austral downs

automatic contrast corrector

backing up recordings

bacteremia

bath thermometer

Bayvet

begotten before marriage

bilip