词汇	three educational models
释义	three educational models 三个环节
随便看	But it was not a hat But it was not a hat,it was a boa constrictor But it was not a hat, it was a boa constrictor but it was not true But it was only a brief moment of uncertainty But it was powered by batter ies But it was severely criticised But it was soiled but it was too cold but it was too hard but it was worth it But it will is soon But it will loosen up But it worth the risk But it worth the risk? But it would be fun Butiu Butiuc Butiulca But I want to know how many words a minute But I was a birch tree But I was a birch tree,I was a lizard But I was a birch tree, I was a lizard but I was not here at the mean time But I was often fouled