1·Who sets the standard for water quality?
水质标准由谁来制订？
—— 《牛津词典》
2·How much has the government spent improving the water quality?
政府在改善水质上投入了多少资金？
3·The government encourages farmers to grow corn instead of rice to improve water quality.
政府鼓励农民种植玉米而非水稻，以改善水质。
4·What's more, the area will improve the water quality of Baiyangdian Lake, one of the largest freshwater wetlands in North China.
此外，该区将改善白洋淀的水质，白洋淀是中国北方最大的淡水湿地之一。
5·The area of wetlands in China has become larger over the past five years, growing by 202,600 hectares and making a great contribution to water quality and environmental protection.
5年来，中国湿地面积增加了20.26万公顷，为水质和环境保护做出了重要贡献。
6·It can also help to purify the water quality, reduce pollution and improve environment.
荷花还可净化水质、减少污染、改善环境。
7·They keep our air clean, reduce noise pollution, improve water quality and provide food and building materials.
他们保持我们的空气清洁，减少噪音污染，改善水质，提供食品和建筑材料。
8·You can make the water quality worse.
会使水质变得更差。
9·Water quality can deteriorate in the summer.
夏季时水质会变坏。
10·Erosion also does major harm to water quality.
土地侵蚀确实也是水质的一个主要危害。
1·Who sets the standard for water quality?
水质标准由谁来制订？
—— 《牛津词典》
2·It can also help to purify the water quality, reduce pollution and improve environment.
荷花还可净化水质、减少污染、改善环境。
3·They keep our air clean, reduce noise pollution, improve water quality and provide food and building materials.
他们保持我们的空气清洁，减少噪音污染，改善水质，提供食品和建筑材料。
4·This unique creature is part of an imperiled community of aquatic organisms in the Gulf of Mexico, where poor water quality and habitat loss have weakened the ecosystem.
这种独特的生物是墨西哥湾水生生物中遭到威胁的物种之一，墨西哥湾恶劣的水质和栖息地的丧失减弱了生态系统。
5·The spill spread over 165 square miles and posed a serious threat to both sea life and water quality.
原油的蔓延扩散超过了165平方英里，对海洋生物和水质造成了严重威胁。