deal in

US /diːl ɪn/
UK /diːl ɪn/
"deal in" picture
1.

经营, 买卖

to buy and sell a particular product or type of product

:
My uncle deals in antique furniture.
我叔叔经营古董家具。
The company primarily deals in software solutions.
该公司主要经营软件解决方案。
2.

涉及, 关于

to be concerned with or to involve

:
The report deals in the latest economic trends.
该报告涉及最新的经济趋势。
His research primarily deals in quantum physics.
他的研究主要涉及量子物理学。