So applying methylparathion properly and developing other insecticides instead of pyrethrins insecticides should be served as the main management methods in chemical control.是什么意思_So applying methylparathion properly and developing other insecticides instead of pyrethrins insecticides should be served as the main management methods in chemical control.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句