单词：meta-sulfanilic acid
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What arc the parts of a flower? Flowers can have male parts and female parts. The female parts make eggs that become seeds. The male parts make pollen. Pollen is a powdery material that is needed by the eggs to make seeds. To make seeds, pollen and e
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Everybody should take up gardening as a hobby. We can all get back to nature. Thousands of years ago we all did a bit of gardening. Its one of the most relaxing hobbies I can think of. Its also very satisfying. I get very excited about gardening. I l
纯正英语一分钟
Globe Trotting Tropicals Plants were world travelers, long before tourists like you and me, were able to fly off to vacation around the world. When Columbus sailed west, he was seeking precious spices of the Indies. He missed his original destination
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Everybody should take up gardening as a hobby. We can all get back to nature. Thousands of years ago we all did a bit of gardening. Its one of the most relaxing hobbies I can think of. Its also very satisfying. I get very excited about gardening. I l
听一分钟英文-G
Bamboo's tough reputation is such that another bamboo specialist was known by the Chinese as the iron-eating animal. The giant panda is famous for its exclusive diet. Giant pandas are thought to have originated in Southwest China millions of years ag
英语听力：文化博览2008年
听力文本 Recording 33 录音33 In today's lecture, I'm going to talk about the part that plants have played in our history, something most of us probably never give any thought to. 今天这节课，我将会讲讲植物在历史中扮演的角色，
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