In view of the above, we regret that we have to return the defective goods to you for replacement at your expense.

鉴于以上情况，很遗憾我们不得不将次品退回你处调换，费用由你方支付。

youdao

Plug-in design of Iron, hot air handle, tweezers and power cord is easy replacement, save the maintenance cost and transportation expense.

烙铁，热风手柄，镊子及电源线均为接插式设计，方便替换，节省维修费及运输费用。

youdao

The replacement can be applied when the expense of repair exceeds one third of the original value.

维修费用超过原值的三分之一后可申请更新。

youdao

That's because something like knee replacement isn't one expense but many.

CNN: How to bargain hunt for health care