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Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

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My dear Teachers，fellow students and friends： Good afternoon． As we all know, the earth is a planet almost covered by water，and it is water made every thing on the earth lively．Water is also one of the important part of our environment．Th

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The air thins and they begin to lose the protective weight of the miles of air above them. The pressure is dropping, when you finally get to the stratosphere, and to the altitude we like to work at, it's only one one hundredth that of it's on the gro

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Hey! Lennie! Good to see you. You too. Kim's doing okay? Yeah, seems like the usual Kim. Lennie! Honey? Sir, back away now! I didn't do this. Put your hands up! Now! Wanted for murder. Suspect's name: Bryan Mills. 21, he joins the army. At 23, he joi

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15The Lord said to Moses and Aaron, 2Speak to the Israelites and say to them: 'When any man has a bodily discharge, the discharge is unclean. 3Whether it continues flowing from his body or is blocked, it will make him unclean. This is how his dischar

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My dear Teachers，fellow students and friends： Good afternoon． As we all know, the earth is a planet almost covered by water，and it is water made every thing on the earth lively．Water is also one of the important part of our environment．Th

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Kelly Moore and her friends went to the beach. Kelly did not know how to swim. All her friends were having fun in the water. Come in! they kept shouting. Stop being a chicken! she heard them say. Kelly hated being teased. She finally decided to jump

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今天我们要学的词是discharge。 Discharge有出院的意思。The H1N1 patient was discharged from the hospital after recovery, 这位H1N1甲型流感患者康复后出院。Former British Prime Minister Margaret Thatcher was discharged from

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There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th

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In 1993, water aerobics was only for senior citizens or patients in rehab. Nowadays, it encompasses a variety of trendy underwater sports, all of which are healthy. The body has 90 percent support when under water. That means the joints only have to

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These are the normal navigational instruments, I replied, and I'm familiar with their uses. 这些是航海家常用的仪器，我答，我知道它们的用法。我现在看见的这个表盘，上面有能转动的针，那不是流体压力计吗？