您要查找的是不是：
- A dyke was built to retain the floods. 修了一道堤坝挡住洪水。
- retainable pollutant 保守性污染物
- Discharge pipe take pollutant away from the coastal area into the sea. 排泄管道将污染性物质由沿海岸区排入大海。
- I retain a clear memory of those days. 我还清晰地记得那些日子。
- He has managed to retain most of his fortune. 他设法保存了他的大部分财产。
- Concentrated study will help you to retain knowledge. 专心学习有助于你记住知识。
- Dicotyledonous plants retain a series of strands. 双子叶植物中保留着一系列的束。
- Carbon dioxide may not be a typical air pollutant. 二氧化碳可能不是一种典型的污染物。
- What should I do? Retain the red door? 现在门已经刷上红色了，怎么办?
- Coal itself is a heavy pollutant. 煤本身就是一种严重的污染物。
- I cannot retain so much information. 我不能记住这么多的信息。
- The city was overhung with the pollutant smog. 整个城市弥漫在污染的浓雾之中。
- You must retain your school reports. 你必须将学习成绩单保存好。
- China dishes retain heat longer than metal pans do. 瓷碟子保温的时间要比金属盘久。
- Can Pollutant Stave off the Global Warming Crisis? 污染物可否推迟全球变暖危机?
- I can't hold out (ie retain my urine) much longer; I must find a toilet. 我憋不住了(要小便), 得找个厕所。
- In the united state most marry women do not retain their maiden name. 在美国大部分结过婚的女人不会保留她们的娘家姓。
- The pollutant is N-cyclohexyl cyclohexamine. 饮水中污染物为二环己胺。
- The city was overhung with the pollutant smog. 整个城市弥漫在污染的浓雾之中。
- Do you retain the custom of saying grace? 伯伯保持饭前饭後作祷告的习惯吗？
