save的用法

　　Home owners are being encouraged to insulate their homes to save energy.

　　当局鼓励房主给住房加隔热装置以节约能源。

　　They are campaigning to save the area from building development.

　　他们正开展一场反对在这个地区进行房地产开发的运动。

　　I'm saving for a new car.

　　我正攒钱想买辆新车。

　　I'm not very good at saving.

　　我不大攒得住钱。

　　He's saving his strength for the last part of the race.

　　他保存体力，以便在比赛的最后阶段发力。

　　She saved a little girl from falling into the water.

　　她救下一个眼看要落入水中的小女孩。