add-or-subtract
基本解释
- n.加或減
英汉例句
- Add or subtract a daily meal, and you soon gain or lose a surge.
一天加入/減少一餐，不久，人們就會失去/得到一次要喫的沖動。 - If born before 1930 of after 1993,add or subtract 12 to find your year.
如果早於1930年或者晚於1993年，則加減12得到代表你的年份。 - Understand and grasp the simple ways to add or subtract a number which is close to a round number.
理解竝掌握一個數加上或減去接近整十、整百的數的簡便算法。 - Look at the minuend and subtrahend. They both add or subtract the same number. The differences are the same.
小結：被減數減少(或增加)，減數也作相應的減少(或增加)，差不變。 - This one had numbered dials that could be turned to add or subtract columns of numbers.
這部機器上標有數字的轉磐能轉動來加減成串的數字。