If you persist in jogging, you'll shed some weight.

你坚持慢跑就会减轻体重

　　动词词组persist in doing sth./in sth.，意思是，（不顾困难、他人的反对等）坚持做。

　　例句：

　　Year after year, she persisted in training, and was at last admitted to the swimming team of the province.

　　她年复一年坚持训练，终于进入了省游泳队。