单词：black buoy white vertical stripes
单词：black buoy white vertical stripes 相关文章
Tracy looked at the flag. The flag is red, white, and blue. It has 50 white stars. The white stars are on a blue square. The flag has six white stripes. It has seven red stripes. All the stripes are horizontal. They are not vertical. The stripes do n
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This Scientific Americans 60 senconds science. I'm Cythia Graber. This will just take a minute. How did the zebra get stripes. One theory holds that stripes help confused predators. But stripes might be primarilly to protect zebras from ferocious ins
Scientific American(二)月
[00:00]A：What a day. I mean, it just doesn't get any better than this, you know? [00:06]Even the star's out. Not going to find a star like that in the wild. [00:16]Marty. Buddy. Listen. Everybody has days when they think the grass might be greener
英美人天天都在说的4000句:跟着影视学最真实的口语
How did zebras get their stripes? It's hard to get a black-and-white answer. 斑马身上的条纹是如何形成的？我们很难得到确切的答案。 Some scientists say the stripes are a form of camouflage that protects zebras from hungry lion
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Tracy looked at the flag. The flag is red, white, and blue. It has 50 white stars. The white stars are on a blue square. The flag has six white stripes. It has seven red stripes. All the stripes are horizontal. They are not vertical. The stripes do n
英语第1级听力-English Level 1
Tomorrow is the first day of school. Barbara looks at her backpack. It has holes. It is dirty. She needs a new one. Her mom takes her shopping. There are so many backpacks. One backpack has yellow stars. Another one has rainbow stripes. Another one h
英语第2级听力-English Level 2