He had an unquenchable thirst for life.
他有着极其强烈的求生欲。
An unquenchable exuberance lived in him.
他身上自有一种抑制不住的活力.
Recovering slowly, with agony, from each of these recurrent blows, his unquenchable exuberance had lived.
他怀着极大的痛苦从这接二连三的打击中慢慢恢复过来, 而且他那抑制不住的活力竟也得以保持下来.
There are some, whom a thirst Ardent, unquenchable, fires.
来自M. Arnold
The film's unquenchable power source is the dynamic between Cagney and Darro.
来自NEWYORKER
Unquenchable verbosity is part of the Philip Roth package if you choose to buy.
来自WSJ