multiply /ˈmʌltiplai/ vt. & vi. 1. (使)增加，(使)繁殖：multiply one’s chances of success 增加成功的机会 When animals have more food, they generally multiply faster. 动物如得到较多食物，通常会繁殖较快。 2. 乘，使相乘：multiply 5 by 3 以三乘五  Six multiplied by five is thirty. 5乘6得30。