water conservancy的用法和樣例：
例句
- We have also built150small water conservancy works.
我們還修建了一百五十項小型水利工程。 - Guizhou is rich in many water courses, streams and rivers.
貴州水利資源豐富，有眾多大河小溪。 - Water is stored against the dry season.
蓄水以備旱季使用。 - Paddy fields and aquifers are still contaminated with salt water.
稻田和地下蓄水層仍受咸水污染。
