低质量的句子示例
运动医学.
Sports medicine.的运动医学的心脏协会.
American College of Sports Medicine- American Heart Association.每年在体育震荡2和3之间发生百万（UPMC运动医学）。
Between 2 and 3 million concussions happen in Sports medicine.American College of Sports Medicine- American Heart Association.Between 2 and 3 million concussions happen in 
