1. The dingy and insanitary environment in the shantytown is a breeding ground for crime. 贫民窟的环境既脏暗又不卫生，是罪恶孳生的温床。
2. And the conditions in temporary relief (temporary relief) camps are over crowded and in sanitary (insanitary). 临时救灾帐篷已经人满为患，卫生条件也让人担忧。
3. The Amazonian area of eastern Peru, with its humid and insanitary conditions, is really a hotbed for the spread of cholera. 在秘鲁东北部的亚玛逊河流域，由于气候湿热、卫生条件极差，正是霍乱流行的温床。
