中国是世界上拥有人口最多的国家.谢谢。 Too many people cause too many troubles, for example,the food problem.And today,in order to control the increasing population,china hasformulated the policy of family planning.这又是什么意思呢太多的人口带来了太多的问题，例如，食物问题。而今天，为了控制人口的增长，中国已经实施了计划生育政策。谢谢。你太有才了， That is late marriage,late childbirthand having fewer but healthier children. Men of 22 years old and women of 20 years old can get married.这又是什么意思呢那就是晚婚晚育，拥有少量但是健康的孩子。男的22岁、女的20岁才能结婚。谢谢。 If a man of 25 gets married with a woman of 23 or over 23,their marriage is alate marriage. Childbirth by a woman at the age of 23 or more is a late childbirth. 这个呢