main water source的用法和樣例：
例句
- Water diverted from the Luanhe River to Tangshan is a main water source of the Caofeidian Industry Zone.
唐山市引灤供水系統是曹妃甸工業區的主水源。 - At least two million people who live amid the canals, rice paddies and chemical plants around the lake had to stop drinking or cooking with their main source of water.
至少有兩百萬人住在運河區，周圍的水稻田和化工廠都不得不停止使用他們的主水源來飲用和做飯。
