求翻译：世界卫生组织负责人表示，已经面临重大问题的贫困国家将会受到最严重的影响。发展中国家脆弱的卫生系统所受得压力将与日俱增。是什么意思？

World Health Organization official said, already facing major problems of poor countries will be most severely affected. Fragile health systems in developing countries have suffered the pressure will increase.

World Health Organization (WHO) official said, is already facing major problems of poverty-stricken countries will suffer the greatest impact. fragile health systems by developing countries is the increasing pressure.

The World Health Organization people in charge indicated that, will already face the major issue the impoverished country to be able to come under the most serious influence.The developing nation frail sanitation system will receive the pressure to grow day by day.

The World Health Organization official said, already facing major problems of poor countries will be worst affected. Fragile health systems developing countries increasing the pressure will.

The World Health Organization official said, already facing major problems of poor countries will be worst affected. Pressure on fragile health systems in developing countries will increase.