calculate /ˈkælkjuleit/ vt. & vi. 1.计算，核算：calculate the cost 计算费用；calculate mentally 心算 2.估计，推测：I calculated that we would arrive at 6:00 p.m. 我估计过我们下午6点到。3.打算，有…企图： That remark was calculated to hurt someone’s feelings. 那种评论是想刺伤某人的感情。The speech was calculated to win votes. 那个讲话是想赢得选票。calculate on/upon 预计
calculation /ˌkælkjəˈleiʃən/ n. 1. [u] & [c] 计算：a rough calculation粗略计算 Finding ways of saving money involves complicated calculations. 找出省钱方法涉及复杂的计算。2. [c] 推断，预测，估计：She did a rapid calculation in her head.她在脑中快速预测了一番。Decisions are shaped by political calculations. 决定受政治评估影响。
calculator /ˈˌkælkjuleitə/ n. ［c］ 计算器：an electronic calculator 电子计算器 The calculator was damaged accidentally, and we needed to buy a new one.这个计算器意外被弄坏了，我们需要买一个新的。Exam candidates are not allowed to use advanced calculators with database capability.考生不得使用有数据库功能的高级计算器。
