Tongan District in Xiamen was chosen as the study area which borders on Tongan Bay. The environmental costs incurred by applying pesticides in Tongan District from July 1999 to June 2000 are evaluated.是什么意思_Tongan District in Xiamen was chosen as the study area which borders on Tongan Bay. The environmental costs incurred by applying pesticides in Tongan District from July 1999 to June 2000 are evaluated.在线翻译_英语_读音_用法_例句