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pair noun

  /peː/ , /pɛ(ə)ɹ/ , /pɛə(ɹ)/
  • Two similar or identical things taken together; often followed by of.
ペア, 一組, , 一対
  • Two people in a relationship, partnership or friendship.
ペア,
  • A couple of working animals attached to work together, as by a yoke.
  • (kinematics) In a mechanism, two elements, or bodies, which are so applied to each other as to mutually constrain relative motion; named in accordance with the motion it permits, as in turning pair, sliding pair, twisting pair.
対偶

pairs

神経衰弱
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