He is______in dealing with the case,he has lots of working______(experience).

问题描述:

He is______in dealing with the case,he has lots of working______(experience).

experienced, experience.
experience
n. 1. 经验,体验[(+of/in)] 2. 经历,阅历
vt. 1. 经历;体验 2. 感受;遭受