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pErFormAnCE可数吗

performance既可做可数名词,又可做不可数名词.当performance翻译为演出,表演,表现,行为,成就的时候,是可数名词.当performance翻译为履行,执行,性能,工作情况的时候,是不可数名词.performance 英 [p'fmns],美

performance是可数也是不可数.N-COUNT 表演;演出A performance involves entertaining an audience by doing something such as singing, dancing, or acting.N-UNCOUNT (汽车的)性能A car's performance is its ability to go fast and to increase its speed quickly.

不可数名词when you change your behaviors, you change your performance.当你改变你的行为,你改变你的表现;

做表现讲解时,它是不可数名词.做演出讲时,是可数名词.

牛津字典上performance在性能方面同时为可数和不可数名词,predictive performance意思为预测性能,所以同时为可数和不可数名词

译为表演时不可数,译为表现时可数

搜一下:performance 是可数名词还是不可数名次 查清楚再来 谢谢求大神帮助

performance在上句中的意思为"表现"performance作"表现","能力","性能"的意思时,是不可数名词,当作"表演"的意思时,才是可数名词Eg:The singer's performance was terrible.There are two performances a day.

是可数名词. 我经常在句子中看到.

不可数名词 不能说 performances

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