double purpose meaning in English

两用的
两种用途的

Life insurance can serve a double purpose in your retirement plan : protection and savings
人寿保险能带给您的退休计划一份双重的意义：保障及储蓄。
The acts have the characters of relativity , mutual dependence and double purposes , which distinguish themselves from the acts in civil law
诉讼行为的连续性、相互依赖性、时空限定性以及目的二重性是其与实体行为相区别的特征。
The walls mark field boundaries and also serve a double purpose as well ? farmers needed somewhere to pile the stones they had to remove from their rock - strewn fields in order to farm
这些墙在标记田地边界的同时，也为农夫们在耕地时挖出的石头提供了一个放置的场所。
That s my masterpiece . i made it , as well as this larger knife , out of an old iron candlestick . " the penknife was sharp and keen as a razor ; as for the other knife , it would serve a double purpose , and with it one could cut and thrust
这是我的杰作，也是我自制的，这把刀是用旧的铁蜡烛台做的， ”那削笔刀锋利得象一把剃刀，它有两种用处，可以当匕首用，也可以当小刀用。