2019-2020学年度人教版必修二Unit3ComputersPeriod1Reading课件(46张)
2019-2020学年度人教版必修二Unit3ComputersPeriod1Reading课件(46张)第3页

to make sth. less complicated and therefore easier to do or understand

vt. 简化

simplify

the whole number or amount when two or more numbers or amounts have been added together; a calculation, esp. a simple one, using such processes as adding, subtracting, multiplying or dividing; an amount of money;

n. 总数;算术题;金额

sum