61.最有趣的是当一个家庭有了三个及更多孩子的时候，我们看到女性的家务活增至每周55小时，而男性不升反降，变成了14小时。
What is the most interesting is that when a family had three or more children, we find that the amount of household work for women increased to 55 hours per week while that for men, however, decreased to 14 hours rather than showing any increase by any measure.
62.首先，原材料和制成部件构成了整个生产流程最初步的保障。
First of all, raw materials and manufactured components comprise the initial physical input in the entire manufacturing process.
63.原材料与制成部件到位后先需储存以供后续的组装，但是，组装首先需要依靠生产规划阶段。
Once raw materials and manufactured components are obtained, they are stored for later assembly, but assembly first depends on the production planning stage.
