And problems continue with the development of the Afghan security forces and with corruption among Afghan officials.

VOA: special.2010.06.26

Depriving him of the breast, could lead to serious problems in his personality development.

过早断奶，会对他的人格发展造成严重影响。

耶鲁公开课 - 心理学导论课程节选

"The same problems exist in developing countries, but the institutional development of regulatory agencies lag behind.

VOA: standard.2010.02.22

But,she warns this progress is fragile. She says the momentum for health development could come to a grinding halt because of problems stemming from the food and financial crises, the changing climate and the H1N1 influenza pandemic.

VOA: standard.2009.12.29