on purpose

1.I don't think he stepped on your toes on purpose.

想他不是有意伤害你感情。

2.Based on purpose of training in the undergraduate college of applied type and characters of the survey course,this article discussed necessary and imminency of innovation of survey practice.

从应用型本科院校养目标和工程测量课特点出发,探讨了测量实习必要性、迫切性,提出了对于一些观点,并付诸于教学实践当中,取得了很好效果。