1.delay v. 延迟；延期；推迟

例句：They had delayed having children, for the usual reason, to establish their careers.
为了那个通常的原因——创立自己的事业，他们推迟了要孩子Tg^P%3iIW+-*UJw。

2.productivity n. 生产力；生产率；生产能力

例句：Scientific inventions such as these have raised labour productivity by a big margin.
诸如此类的科学发明，都大大提高了劳动生产率]7)F*[o4YMjuOm_oDX。