Medical experts have said that scutter is the best aerobic exercise, a long period of aerobic exercise can increase body fat consumption, if we can persevere, we can receive good slimming effect.
有医学专家称,大步疾走是最
有氧运动,长时间
有氧运动能增

脂肪消耗,如果能持之以恒,必能收到很
减肥效果。
英语六级听力真题精听
都会被那么多不同的


是又一个动词短语。
是另一个短语动词。


