pr

同义

pr praseodymium atomic number 59

词性

n

解释

a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process

示例

None

同义

puerto rico porto rico pr commonwealth of puerto rico

词性

n

解释

a self-governing commonwealth associated with the United States occupying the island of Puerto Rico

示例

None

同义

public relations pr

词性

n

解释

a promotion intended to create goodwill for a person or institution

示例

None