您要查找的是不是：
- groundwater source pollution investigation 地下水水源地污染调查
- Soil Sample Preparation of Soil Pollution Investigation in Yunnan Province 云南省土壤污染状况调查中土壤样品制备
- We should use anthracite to avoid air pollution. 我们应该使用无烟煤以防止空气污染。
- Pollution control has cleared the air. 污染管制已净化了空气。
- The accident is under investigation. 这一事故正在调查之中。
- Man is fighting a battle against pollution. 人类正在与污染作斗争。
- Pollution is still very much a live issue. 污染现象仍然是当前的大问题。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧，土壤的酸化越来越严重。
- It's only the initiative of the investigation. 这仅仅是调查的开始。
- A clamor in the press for pollution control. 在报纸上对污染控制的呼吁
- The matter is under investigation. 事情正在调查中。
- Water pollution imperils all kinds of marine life. 水质污染危及所有海洋生物。
- Investigation of fraud was their commission. 调查诈欺舞弊是他们的任务。
- Pollution has stripped the trees of their foliage. 污染剥光了这些树的叶子。
- Further investigation revealed that he was guilty. 进一步侦查显示他是有罪的。
- We have freed the lake from pollution. 我们已经清除了该湖的污染。
- The investigation was tabled for reasons unknown. 不知何故调查延缓进行。
- Some of us often neglect such investigation and study. 我们有些人常常忽略了这类调查研究。
- Many young people could not resist the spiritual pollution. 很多年轻人不能抵制精神污染。
- He has promised a thorough investigation into the affair. 他已答应彻查此事。
