mental arithmetic

音标发音

• 英式音标 [ˌmen.təl əˈrɪθ.mə.tɪk]
• 美式音标 [ˌmen.t̬əl əˈrɪθ.mə.t̬ɪk]
• 英式发音
• 美式发音

基本解释

• 心算

同根派生

• mental arithmetic相关词

英汉例句

雙語例句

• I was quick at figures.At school I did three years of arithmetic in one. I was particularly good at mental arithmetic.
  在學校我把三年的數學課程一年就學完了，我特別擅長心算。
• I could remember in detail how the prices had acted on the previous day, just before they went up or down. My fondness for mental arithmetic came in very handy.
  就在價格上漲或下跌的時候，我可以確切地記得他們在前一天那個時候的浮動情況，我對心算的喜愛在我的工作中越來越方便。
• Even if the presidential candidates know in their guts that they are being hypocritical, they cannot very well be kept busy the whole campaign doing mental arithmetic.
  即使縂統候選人知道自己正滑曏偽善的深淵，但縂不能讓他們在整個競選活動中不停地做心算來維持本能。

權威例句

• His use of this extra memory space meant that he could circumvent that perennial pitfall of mental arithmetic, losing one's place.
  ECONOMIST: Who wants to be a genius?
• Wily suspects may try to raise their baseline readings artificially (by doing mental arithmetic, for example), making later fibs more difficult to detect.
  ECONOMIST: Polygraphs hit the big time
• Calculations by scientists, who are forever totting up times but are often bad at mental arithmetic, will also be much easier if they can just move decimal points instead of multiplying and dividing.
  ECONOMIST: A 24-hour day is inefficient

• mental arithmetic更多例句

词组短语

短語

• processing load of mental -arithmetic 心算加工負荷
• abacus mental arithmetic education 珠心算教育
• Mental Arithmetic Ability 心算能力;口算能力
• ability of mental arithmetic 心算能力
• Quick mental arithmetic 快速心算

• mental arithmetic更多词组

英英字典

劍橋英英字典

• calculations that you do in your mind, without writing down any numbers

• mental arithmetic剑桥字典
• mental arithmetic柯林斯字典

专业释义

心理學

• 心算

  Working memory span, performance-approach goal and performance-avoidance goal could directly predict mental arithmetic.
  工作記憶廣度、成勣趨近目標和成勣廻避目標是心算正確率和心算時間的直接預測者。

  毉葯科學

• 心算

數學

• 心算