p.a.
导读：p.a.读音音标
p.a.意思解释
abbr.per annum 每年； 英英释义 p.a.n.an electronic amplification system used as a communication system in public areas同义词：public addr
p.a.意思解释
abbr.per annum 每年； 英英释义 p.a.n.an electronic amplification system used as a communication system in public areas同义词：public addr
p.a.读音音标
p.a.意思解释
abbr.
per annum 每年；
英英释义
p.a.n.
an electronic amplification system used as a communication system in public areas
同义词：public address systemP.A. systemPA systemPA
adv.
by the year; every year (usually with reference to a sum of money paid or received)
同义词：per annumper yeareach yearannually
