keepalive是什么意思介绍如下：
keep alive
英/kiːp əˈlaɪv/。美/kiːp əˈlaɪv/。
保持活力;保住，保持，竭力维护，保留下去。
The Irish defender nodded home a near-post header to keep alive the Seagulls' slim hopes of survival.
爱尔兰后卫的头球顶进近角，保住了布莱顿保级的一线希望。
They tried their best to keep alive in the forest.
他们在那片原始林里尽一切努力保持生命。
The similarities between Mars and Earth were enough to keep alive hopes of some form of Martian life.
火星和地球之间的诸多相似处足以让人们对火星上存在某种生物抱以希望。
It is apparent that all living things need water to keep alive.
它是明显的所有生存事需要水保持活。
They've got to hunt for food to keep alive.
他们为了求生存不得不猎取食物。
