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shortage lack deficiency scarcity
short abbreviate abbreviation initial
IPv6继承了IPv4的优点,摒弃了它的缺点,并有明显改进 IPv4网络只需简单地更换协议栈就可以升级为IPv6网络 IPv6t和IPv4不兼容 运行于IPv4上的TCP和UDP协议也必须升级才能在IPv6上运行
IPv4兼容的IPv6地址 IPv6兼容的IPv4地址 映射IPv6的IPv4地址 映射IPv4的IPv6地址
IPv4不好使用 政府推动 IPv6比IPv4更先进 IPv4地址短缺
restrict limited imprison confine
remainder remarkably ordinary abbreviation
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restrict confine limited imprison
substitution swap switchover replace
substitution replace switchover swap
scarcity lack deficiency shortage