People need to be satisfied of the need for a new system.
需要使人们明白建立一个新体系的必要性。
Contact with other people is a basic human need.
和他人接触是人的`基本需要。
We need to evaluate how well the policy is working.
我们需要对这一政策产生的效果作出评价。
In case you should need any help, here's my number.
万一你需要帮助的话,这是我的电话号码。
Health care must be at the service of all who need it.
医疗保健机构必须为所有需要者提供服务。