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subtract

“Subtract” 是一个英文动词,通常意味着”从整数或者总数中取掉某个数量”,在数学中通常被理解为减法的操作。

  1. I had to subtract the cost of the books from my total savings. (我必须从我的总储蓄中减去书的费用。)
  2. Please subtract five from ten to get the result. (请从十中减去五以得到结果。)
  3. The fund was subtracted from the nation’s budget. (这笔资金是从国家预算中扣除的。)

“Subtract” 由词根 “-tract” 衍生出来,表示”拉”,“拖”。

“Subtract” 的前缀 “sub-” 表示”下面”或”降低”,后缀 “-tract” origin: < Latin trahere 拉,拖。

该词源自拉丁文的 “subtrahere”,原意为”拉出”或者”带走”. 在英语中, “subtract” 主要用于数学和一些比喻中。

名词形式: subtraction (减法) 动词: subtracted (减去 - 过去式), subtracting (正在减去 - 进行式)

你可以将 “subtract” 分为 “sub-” 和 “tract” 两部分来记忆。 “sub-” 可以理解为 “under” 或 “below”, “tract” 可以理解为 “pull”。 这样,你就可以将 “subtract” 看作是 “pull something below” 或者 “pull something under”。

James had ten apples. He gave three to his little sister. Now, he needs to subtract three from ten to know how many he has left. (詹姆斯有十个苹果。他给了弟弟三个。现在,他需要从十里减去三,才能知道他还剩下多少。)