Ex. their spirits began to droop when the enemies came beleaguering their base .
当敌军包围起他们的基地时,他们的精神开始萎靡.
Problems such as imbalances in economic and social development between urban and rural areas as well as across different regions , the extensive pattern in economic development , demographic , resource and environmental strains as well as problems beleaguering employment , social security and income distribution remain to tackle .
