You have rich experience in sales.

你有很丰富的销售经验。

He has rich experience in practice.

他有丰富的实践经验。

They have rich experience in practice.

他们有丰富的实践经验。

She gained rich experience in teaching.

她获得了丰富的教学经验。

He has gained rich experience in these years.

这些年来，他取得了丰富的经验。