purports
v.
声称是…，（装得）像是…的样子( purport的第三人称单数 );
例句:
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She purports to represent the whole group.
她自称代表整个团体.
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The document purports to be official but is really private.
那份文件据称是官方的,但实际上是私人的.
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He purports to be a rich businessman, but I don't believe him.
他有一副大商人的派头, 但是我不相信他.
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Some of it purports to be a simple reaction to gigantism.
来自THETIMES
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Then perhaps particle physics can explain all that it now purports to.
来自SA
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The readability formula purports to represent the text's appropriate grade level.
来自WSJ