英语词汇hard and fast怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	hard and fast
释义	hard and fast usu. with negative(of a rule or a distinction made) fixed and definitive （规则, 差别）不可更动的; 无法改变的。 See main entry:hard
随便看	neutral axis neutral density filter neutralism neutralist neutrality neutralization neutralize neutralizer neutrally neutral zone neutrino neutron neutron bomb neutron star neutropenia neutropenic neutrophil neutrophilic Nev. Neva Nevada Nevadan never never a one never cease to

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