pa

同义

dad dada daddy pop pa papa pappa

词性

n

解释

an informal term for a father; probably derived from baby talk

示例

None

同义

protactinium protoactinium pa atomic number 91

词性

n

解释

a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

示例

None

同义

pa pascal

词性

n

解释

a unit of pressure equal to one newton per square meter

示例

None

同义

pa pa. pennsylvania keystone state

词性

n

解释

a Mid-Atlantic state; one of the original 13 colonies

示例

None

同义

p.a. p.a. system pa pa system public address system

词性

n

解释

an electronic amplification system used as a communication system in public areas

示例

None