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(yè)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(wàn)人住在運河區，周?chē)乃咎锖突S(chǎng)都不得不停止使用他們的主水源來(lái)飲用和做飯。
