Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

we celebrate Thai Elephant Day. Elephants look very different _____ other animals. They are huge. They have large ears and long _____ (trunk). They can _____ (捡起) and carry heavy things _____ their ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...