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1.sustainable development 可持续发展
例句：Therefore , sustainable development should become the direction to Honghu wetland ecotourism.
洪湖湿地生态也面临一些生态问题,影响了湿地生态旅游的开展.
2.water resources 水资源
例句：Scarce water resources are shared between states who cannot trust each other.
稀有的水资源被两个互不信任的国家所共享。
3.make sure 确保
例句：Make sure that your meal won't be smothered with white sauce.
千万不要把自己的饭菜上都涂满白汁沙司。
4.food security 食品安全
例句：A serious problem of food security emerged after the flood.
洪水过后,食品安全的严重问题就暴露了出来.
