PR是什么意思音标:英 [ˌpi:'ɑ:(r)]美 [ˌpi:'ɑ:r]

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n a soft yellowish-white trivalent metalpc element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
n a self-governing commonwealth associated with the United States occupying the island of Puerto Rico
n a promotion intended to create goodwill for a person or institution

PR的用法和例句：

1.Come on, keep PR keep PRessure on it.

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