PTAs

abbr. 家庭教师协会（Parent-Teacher Asociations）；贸易协定（Preferential Trade Arrangements）；多项式时同的近似方案（Polyomial Time Approximation Scheme）

释义与例句

n.
  1. 1.

    plural of PTA

v.
  1. 1.

    third-person singular simple present indicative of PTA