You are buying direct, rather than through an agent.

　　你在直接購買，而不是通過代理商購買。

　　He needed a sounding board rather than thinking alone.

　　他需要一個參謀，而不是獨自思考。

　　It's healthier to snack on fruit rather than chocolate.

　　作為點心，水果比巧克力更有益于健康。

　　The problem was psychological rather than physiological.

　　這是個心理而不是生理問題。