How can one be alive as opposed to half alive?

一个人怎样能活出自己的全部？，而不是只活了一半呢？

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Even a slender diplodocus, once believed to have tipped the scales at five and a half tonnes when alive, has lost a tonne and a half from its weight.

即使是一个瘦形梁龙，曾经被认为在活着的时候重达5.5吨，现在也减重了1.5吨。

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The game came alive in the second half.

比赛在下半场变得有看头了。

《牛津词典》

The researchers say all ten patients remain alive two and a half years after the treatment, and the disease has disappeared in nine of them.

VOA: special.2009.12.16

Less than half are alive and kicking today.

FORBES: Venture Capital's Pawnbroker

The winger broke through in each half to keep alive Bath's hopes of reaching the knock-out phase.

BBC: Glasgow Warriors 19-25 Bath

The Ospreys had to come out and attack in the second half to keep alive their hopes of defending the Cup.

BBC: London Irish 23-19 Ospreys