1. calculate vt. work (sth.) out by using numbers 计算 e.g. calculate the cost of sth. calculator n. 计算器2. universal adj. existing everywhere or involving everyone 普遍的；通用的；宇宙的 universal rules 一般的原则 universe n. 宇宙; 万有; 世界; 全人类 Our world is but a small part of the universe. 我们的世界只是宇宙的一小部分。 3. simplify vt to make something less complicated and therefore easier to do or understand 简化 The English in this story has been simplified to make it easier to understand. 这个故事里的英语被简写了，可更 容易理 解。4. logical adj. 合逻
