multiply的用法
multiply可用作及物动词,也可用作不及物动词。用作及物动词时,接名词或代词作宾语。
(1)用作及物动词
If you multiply four by five, the answer is twenty.
四乘以五,答案是二十。
Let us multiply the height by the width to determine the area.
用宽乘以高来确定面积。
(2)用作不及物动词
He learned to multiply at the age of five.
他五岁学会做乘法。
The little boy can add, subtract and multiply, but cannot divide.
那小男孩会做加法、减法和乘法,但不会做除法。
3.multiply作“相乘”解时常与介词by连用。
Three multiplied by four makes twelve.
3乘以4得12。
4.multiply up (v.+adv.) 增加…数量
The costs have been multiplied up many times.
费用已增加了许多倍。