例句：

　　She does not know if he is alive or dead.

　　她不知道他是活還是死。

　　We don't know whether he's alive or dead.

　　我們不知道他是死是活。

　　Doctors kept the baby alive for six weeks.

　　醫(yī)生使嬰兒活了六周。

　　We are living in a consumer culture.

　　我們生活在一種消費文化之中。

　　She's living in hall(s).

　　她住在學(xué)生宿舍。

　　The cost of living has risen sharply.

　　生活費用已急劇上漲。

　　This is a really lively party.

　　這真是個熱鬧的聚會。

　　He is a lively and clever boy.

　　他是一個活潑聰明的男孩。

　　The market is quite lively.

　　市場相當活躍。