单词:surface of equal density
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Equal Pay Day is an American day of awareness to highlight the fact that American men earn more than women for doing the same jobs. It is held on April 15 because this is how far into a new year that a woman must work to earn what a man earned in the
Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t
-Im Chris Kaufman and I here with Justin Kasper, who works at Smithsonian, hes an astrophysicist at the Smithsonian. And he's won a project thats gonna launch a probe at the sun, specifically the Solar Wind Electrons Alphas and Protons investigation,
Scientists and politicians have gathered in the Indonesian city of Manado for the World Ocean Conference. They are discussing the role of oceans in mitigating climate change and how climate change affects the world's seas, but their efforts are hamp
暂无音频 NATIONAL EQUAL PAY DAY, 2009 - - - - - - - BY THE PRESIDENT OF THE UNITED STATES OF AMERICA A PROCLAMATION Harriet Beecher Stowe helped galvanize the abolitionist movement with her groundbreaking literature. Frances Perkins advised Presiden
[00:28.74]spirit ['spirit] 精神 [00:32.01]making the rounds 绕圈子 [00:36.57]tease [ti:z] 捉弄 [00:39.96]spare [sp??] 宽恕 [00:42.97]英文原文 [00:44.96]One Friday everyone in our office was in high spirits, [00:49.21]and Marshall, a sale