In 1945 they were able to buy their first commercial farm.
1945年，他们买下了他们的第一个商业农场。
Commercial farm
原声例句
VOA常速英语_美洲
VOA常速英语_美洲
More than 47,000 commercial farms that grow everything from citruses to beans and berries are in this state.
该州有47000多个商业农场，种植从柑橘到豆类和浆果等各种作物。
纽约杂志（视频版）
They've gone as far as to make filming on commercial farms a crime in some states.
在某些州，他们甚至将在商业农场拍摄电影定为犯罪。
英语百科
Intensive farming
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Intensive farming or intensive agriculture also known as industrial agriculture is characterized by a low fallow ratio and higher use of inputs such as capital and labour per unit land area. This is in contrast to traditional agriculture in which the inputs per unit land are lower.