p.a.
n.
abbreviation of "public address" (system), attested from 1936.
| 词汇 | p.a. |
| 词根词缀 | Online Etymology Dictionary p.a. n. abbreviation of "public address" (system), attested from 1936. |
| 随便看 |
英语词根词缀词典收录了54763条英语词根词缀词条，基本涵盖了全部常用英语词汇的词根、词缀及词根记忆法解析，是记忆英语词汇的必备工具。