inexhaustible

形容词 inexhaustible:

1. that cannot be entirely consumed or used up
   同义词：unlimited
2. incapable of being entirely consumed or used up

1. I shall die again and again to know that life is inexhaustible.
   我将死了又死，以明白生是无穷无尽的。
2. He is immortal, not because he alone among creatures has an inexhaustible voice, but because he has a soul, a spirit capable of compassion, and sacrifice, and endurance.
   人类不朽不是因为在万物中唯有他能永远发言、而是因为他有灵魂，有同情心、有牺牲和忍耐精神。
3. An inexhaustible supply of coal.
   用之不竭的煤炭供应
4. That from the last ding-dong of doom and clang had faded from the last worthless rock hanging tireless in the last red and dying evening, that even then, there will be one more sound, that of his puny and inexhaustible voice still talking.
   说即使最后一次钟声已经消失，消失的再也没有潮水冲刷的映在落日余晖里的海上最后一块无用礁石之旁时，还会有一个声音，人类微弱的、不断的说话声，这也很容易。

in.ex.haust.i.ble

adj.（形容词）
That cannot be entirely consumed or used up:
无穷尽的：用不完或消耗不掉的：
例句：
an inexhaustible supply of coal.
用之不竭的煤炭供应

Never wearying; tireless:
不倦的：从不感到累的；不知疲倦的：
例句：
an inexhaustible campaigner.
有耐性的竞选者

【引伸】
in.exhaust.ibil.ity 或
in.exhaust.ibleness
n.（名词）
in.exhaust.ibly
adv.（副词）