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。