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sheep可数还是不可数,可数名词和不可数名词

sheep
sheepsheep
sheepsheep
sheeparetheysheep_第5页
aretheysheep_第5页(2)不规则变化:man→men, woman→women, sheep→sheep,tooth
(2)不规则变化:man→men, woman→women, sheep→sheep,tooth
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