Insist on some payment term.

坚持付款条件（卖方）。

Insist on some payment term.

契约的条款与条件。

Payment term : 4% discount.

付款条件： 打4% 折扣。

I think your payment term is too harsh.

我觉得贵方的付款条件太苛刻了。

Our payment term is C. O. d-cash on delivery.

我们的付款方式是货到付款。