calculation 计算，运算 computation 计算，估计 compute 计算，估计 computing 计算 enumeration 计算
account 计算；账目，账户 accounting 计算；会计学 calculation 计算，演算 computation 计算† computing 计算；计算的 reckoning 核算，计算
理论计算机科学 可计算性与计算复杂性 释文 computation 计算
- Arachnida
- arachno
- arachno-
- arachnoid
- Arad
- Arafura Sea
- Arago
- Arago distance
- Arago, Dominique François Jean
- Arago human remains
- aragonite
- Arago point
- Arago ring
- Arago's spot
- Araguaia River
- Araguainha crater
- Aragón
- Arai Hakuseki
- A Railway Station for Two
- A Raisin in the Sun
- Arakan Dynasty
- Arakanese
- arakanese
- Arakelov
- Arakelov geometry