7.包产到户 fix farm output quotas for each household; the fixing of farm output quotas for individual households with each on its own; fix farm output quotas on the household basis

【例】Now that more flexible policies have been introduced in the rural areas, the practice of fixing farm output quotas on a household basis has been adopted in some localities where it is suitable. It has proved quite effective and changed things rapidly for the better.

农村政策放宽以后，一些适宜搞包产到户的地方搞了包产到户，效果很好，变化很快。

8.杂交水稻 hybrid rice

【例】The va"iriety of the most important grain crops has been renewed three to five times, each time resulting in increased yields of 10 percent or more. In the past decade the total area sown to hybrid rice has reached 160 million ha, with an increased output of 240 million tons;

主要粮食作物品种更新了3—5次，每次增产幅度均达到10％以上，仅杂交水稻一项，近10年就累计推广1.6亿公顷，增产稻谷2.4亿吨；

9.四人帮 Gang of Four

【例】They brought harm to millions upon millions of people.

“四人帮”伤害了成千上万的人。