四害密度控制率最高的为蚊，最低的为鼠；
The least reach-mark-ratio of four pests densities was rat density.
纲要里头有一个除四害，就是消灭老鼠、麻雀、苍蝇、蚊子。
There is an article in the programme about doing away with the four pests, that is, wiping out rats, sparrows, flies and mosquitoes.
麻雀，曾为四害，鸟纲雀形目文鸟科麻雀属鸟类的统称，灰头土脸幻想涅槃。
Sparrow, the small wild bird, once denounced one of the Chinese four pests, the general title of the family Passeridae, with ashed apperance dreaming of fantasy nirvana.
众所周知，苍蝇以生活在污秽的环境中，传播数十种病菌而受人们唾弃，被列为“四害”之一。
Well-known, fly is with the life in foul environment, transmit tens of planting bacteria and suffer people disgustful, be labelled "the four pests" one of.
专业灭鼠将成为赚钱新行当以往，在人们的心目中，老鼠为四害之首，于是老鼠过街，人人喊打。
Major destroys rat will be become make money new line of business before, in the memory of people, first what mice is the four pests, then mice crosses a street, everybody cries dozen.
专业灭鼠将成为赚钱新行当以往，在人们的心目中，老鼠为四害之首，于是老鼠过街，人人喊打。
Major destroys rat will be become make money new line of business before, in the memory of people, first what mice is the four pests, then mice crosses a street, everybody cries dozen.
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