multiply

vt. & vi.

1. 乘, (使)相乘
   • His son is learning to multiply and divide.
     他儿子正在学习乘法和除法。
   • One can make 18 by multiplying 3 and 6 (together).
     以3和6相乘可得18。
2. (使)增加
   • Spending on military equipment has multiplied in the last five years.
     过去的五年中军事装备的开支大大增加。
   • His experience was multiplied as the years passed.
     随着岁月的流逝, 他的经验丰富了。
3. (使)繁殖
   • When animals have more food, they generally multiply faster.
     动物在有较多的食物时, 一般繁殖得较快。
   • Hot weather multiplied the bacteria in milk rapidly.
     炎热的天气使牛奶中的细菌迅速繁殖。