英文: Eighteen-year-olds qualify to vote.
中文: 年满十八岁者有选举权.英文: The age of majority is eighteen .
中文: 成年的法定年龄是18岁.英文: What's eighteen minus four?It's fourteen.
中文: 十八减去四是多少?是十四。英文: She lost her virginity at eighteen.
中文: 她十八岁失去了她的童贞。英文: The books he read – at eighteen!
中文: 听听他读过的书吧—只有十八岁!