无可替代的
there is no substitute for ； irreplaceable
“这个问题，非常关键，”他说，“这正是史蒂文＃乔布斯无可替代的所在。”
“The problem, really at the core, ” he said, “is that Steve Jobs’s inspiration is irreplaceable.”
这样的形势比较严峻，因为每一种语言的灭绝都意味着世界失去了一方无可替代的文化。
That's a perilous state of affairs. With the death of a language, the planet loses an irreplaceable cultural phenomenon.
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