求翻译：第二次世界大战以前，农业生产中使用的农药主要是含砷或含硫、铅、铜等的无机物,以及除虫菊酯、尼古丁等来自植物的有机物。是什么意思？

Before the second world war, use of pesticides in agricultural production is mainly with arsenic or inorganic compounds such as sulfur, lead, copper, and of synthetic pyrethroid Insecticides, nicotine, and other organic compounds from the plant.

Before World War 2, agricultural production in the pesticides used mainly containing arsenic, lead, copper or sulfur content, such as inorganic substances, as well as the pyrethroid, nicotine from plants such as organic.

Before Second World War, in the agricultural production uses the agricultural chemicals mainly are including the arsenic or including the sulfur, the lead, the copper and so on the inorganic substance, as well as the deinsectization chrysanthemum ester, the Nicotine and so on come from plant's organ

Before the second world war, use of pesticides in agricultural production is mainly with arsenic or inorganic compounds such as sulfur, lead, copper, and of synthetic pyrethroid Insecticides, nicotine, and other organic compounds from the plant.

Before World War II, pesticides used in agricultural production, mainly arsenic or sulfur, lead, copper and other minerals, as well as pyrethrins, nicotine and other organic matter from plants.