Sea turtles have been on Earth for millions of years, but they may soon die out. The main21to them is people who kill them for food, according to Dr. Wallace J. Nichols of the University of California.
But the latest news may22turtle hunting: Dr. Nichols has found that sea turtles
2015春外研版（三起）四下Module 1《Unit 1 She’s a nice teacher》ppt课件1
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