[例] We use UPS as our courier for the shipping notice and the tracking Number is 231.
[同义词] messenger, bearer, carrier
cover (v.) pay 支付
[例] The organizers will cover some of your costs while you are on this course.
direct cost (n.) production cost of a specific product直接成本
[例] The direct cost of this product is too high. We cannot accept it.
fixed costs costs which do not increase when production increases or decreases固定成本
[例] Fixed cost plus variable cost equals total cost.
indirect costs (n.) costs which are not directly attached to the production of an item间接成本
