1If you really want to lose weight,you might avoid staying with friends.) d# q' b3 w2 w# C
2If your friends are fatter than yourself,the student might be fat.
( {" V+ X" u9 _8 k9 d0 D3the study aim at why the fat and the related behavior get together in society.( f4 P) F) ^2 m* W
4the index of students’ weight is caculated by the height and the weight. |