不可替代Be not allowed to replace
unique?irreplaceable adj.too special, valuable, or unusual to be replaced by anything else Works of art were lost, many of them irreplaceable.
irreplaceable
irreplaceable 失去后无法补偿unalterable 不可变更均为形容词
Be not allowed to replace
IrreplaceableMosquito Works：83537130（英文交流群，欢饮加入）
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