他的发明会使我们节省许多时间和劳力。 His invention will save us much time and labour.
节省劳力的设计用来在工作时保持人体能量或减轻劳动强度的 Designed to conserve human energy in performing work or to decrease the amount of human labor needed.
合伙契约两个人或多个人签订的法律契约，每个人都同意为一个商业实体出一部分资金和劳力，从而每个人都可分享固定比例的一部分利润和承担固定比例的一部分损失 A legal contract entered into by two or more persons in which each agrees to furnish a part of the capital and labor for a business enterprise, and by which each shares a fixed proportion of profits and losses.
