这里的酒店会提供免费的驱蚊剂，而且在傍晚前关闭游泳池酒吧以防止客人染上疟疾。
THE hotel provides free mosquito repellent and closes its pool bar before dusk to prevent guests from contracting malaria.
她避免在尾气排放的环境中行走，不使用杀虫剂，购买有机食物，关闭窗户避免外部污染空气进入，在她房间里用空气过滤器。
She avoids walking through exhaust, doesn't use pesticides, buys organic foods, shuts her Windows to keep air pollution outdoors and USES air filters in her home.
当球阀在不工作期间关闭，经过一段时间，漂白剂将分解并释放出氧气。
When a ball valve is closed in periods of inactivity, the bleach will decompose over time liberating oxygen gas.
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