新东方在线英语四级频道为备考英语四级的同学们整理了英语四级翻译词汇与句型，希望可以为大家带来帮助，一起来学习一下吧。
英语四级翻译词汇与句型复习(20)
词汇：
人口老龄化 aging of population
人口出生率 birth rate
社会保险 social insurance
全民健身运动 nationwide fitness campaign
大龄青年 single youth above the normal matrimonial age
独生子女 the only child in a family
单亲 single parent
青春期 puberty
青少年犯罪 juvenile delinquency
暂住证 temporary residence permit/card
民工 migrant laborers
相定迁户 a relocated unit or household
家政服务 household management service
盗用公款 embezzlement
社区月服务 community service
居委会 neighborhood committee
和谐并存 harmonious coexistence
性别歧视 gender/sexual discrimination
年龄歧视 age discrimination
工作歧视 job discrimination
盗版 pirated/illegal copies
性骚扰 sexual harassment
走私 smuggling
享乐主义 hedonism
道德法庭 court of ethics
句型：
only to find/see
例句：He spent almost all his money to buy the hen which was said to be able to lay gold eggs,only to find it could not lay eggs at all.
It is undoubted that/There is no doubt that...
例句：There is no doubt that war can be avoided if we get down to peace talk.
chances are that...
例句：Chances are that she has already known it, and there is no need for us to keep the secret.