three fifths 是单数还是复数?

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threefifths是单数还是复数?threefifths是单数还是复数?threefifths是单数还是复数?五分之三的意思,要看后边接的名词的形式,如:threefifthsofourclass

three fifths 是单数还是复数?
three fifths 是单数还是复数?

three fifths 是单数还是复数?
五分之三的意思,要看后边接的名词的形式,如:
three fifths of our classmates,这种情况下就用复数,
three fifths of an apple,这种情况下用单数.