4.It is important (necessary, urgent 紧急的, difficult, easy, expensive, desirable, advisable, convenient, comfortable)for sb. to do sth. （发表意见）人们希望建立更多的医院、购物中心、娱乐中心、电影院和其他公用设施来满足人民日益增长的需求。It is desirable to build more hospitals, shopping centers, recreation centers, cinemas and other public facilities to meet the growing needs of people.
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