巧克力出自可可树。Chocolate comes from the cacao tree.野生可可树实际上是不会死的.The wild cocoa tree is effectively immortal.可可树广泛生长于西非的热带森林中.The cocoa tree grows widely in the tropical forests of West Africa....
我们得在下一站换车去芝加哥.We must change at the next station for Chicago.这辆火车是直达的, 你不必换车.This train is direct, you do not have to change.他不得不在上海匆忙换车.He had to make a quick change at Shanghai....