stagnant pool meaning in Chinese

静水池
宁静泉塘
死水塘
滞水池

Mosquitoes lay thir eggs in stagnant pools of water
（蚊虫在不流动的池水里产卵。）
The country used to suffer much from epidemic diseases , which ere largely caused by the wretchedly bad water which the natives obtained from stagnant pools and contaminated streams
这个地方曾经为流行性的疾病所苦，其主要原因乃是当地居民从停滞的水池和污染的河川中，摄取恶劣的水质所致。