不安全的水和卫生条件不足，往往是失去了工作的一大原因，错过了上学的时候，在许多国家长期存在的经济和社会停滞周期。
Unsafe water and inadequate sanitation are often major causes of lost work and missed school days, perpetuating the cycle of economic and social stagnation in many countries.
水若停滞即失其纯洁，心不活动精气立消。
If the water stagnation is losing its pure, heart activity essence stand disappear.
水在沟中停滞而变浊。
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