六级The national average farm size is around 440 acres, but his is only one acre.

全国平均农场面积约为440英亩，但他的农场只有一英亩。

六级One acre of farmland use to for crop production can produce 1,500 pounds of tomatoes

一英亩用于农作物生产的农田可以生产1500磅西红柿

考研Negotiated by USFWS and the states, the plan requires individuals and businesses that damage habitat as part of their operations to pay into a fund to replace every acre destroyed with 2 new acres of suitable habitat .

该计划由美国鱼类和野生动物局与各州协商，要求破坏栖息地的个人和企业作为其经营活动的一部分，向基金支付款项，用2英亩新的合适栖息地替换被破坏的每英亩。

六级Facing water shortages and escalating fertilizer costs, farmers in developing countries are using raw sewage ( ' , 下 水道污水) to irrigate and fertilize nearly 49 million acres of cropland, according to a new report—and it may not be a bad thing.

面对水资源短缺和化肥成本不断上升，发展中国家的农民正在使用未经处理的污水（“，下 水道污水) 根据一份新的报告，灌溉和施肥近4900万英亩的农田，这可能不是一件坏事。

四级At other times the cow wandered around the 526 acre park and the artificial grass field normally used for human sporting events.

在其他时间，奶牛在526英亩的公园和通常用于人类体育活动的人造草地上漫步。

六级One acre of farmland use to for raising cows can produce 250 pounds of beef.

一英亩用于饲养奶牛的农田可以生产250磅牛肉。

高考On a mere 1/10 of an acre in Los Angeles, Loe and her family grow, can(装罐) and preserve much of the food they consume.

洛伊和她的家人仅在洛杉矶1/10英亩的土地上生长，他们可以(装罐) 并保存他们所食用的大部分食物。

六级It is polluting millions of acres of cropland.

它正在污染数百万英亩的农田。

四级The castle, which is located on 11,700 acres, was leased to members of the royal family between 1848 and 1970, including King Edward VII and George V.

这座城堡占地11700英亩，在1848年至1970年间租给了王室成员，包括国王爱德华七世和乔治五世。