1.delay v. 延遲;延期;推遲
例句:They had delayed having children, for the usual reason, to establish their careers.
為了那個通常的原因——創立自己的事業,他們推遲了要孩子 。
2.productivity n. 生產力;生產率;生產能力
例句:Scientific inventions such as these have raised labour productivity by a big margin.
諸如此類的科學發明,都大大提高了勞動生產率 。