multi-ply paper多层纸
multi-ply glass多层玻璃
multi-ply fabrics多层织物
multi-ply composites多
multi-ply subroutine多重子程序
multi-ply composite[材] 多层铺层复合材料
multi-ply belt多层皮带
multi-ply parquet多层实木复合地板
multi-ply particleboard多层结构刨花板
V-T/V-I（及物动词/不及物动词） When something multiplies or when you multiply it, it increases greatly in number or amount. 使大大增加; 大大增加
Such disputes multiplied in the eighteenth and nineteenth centuries.
此类争论在18世纪和19世纪大大增加。
V-I（不及物动词） When animals and insects multiply, they increase in number by giving birth to large numbers of young. 大量繁殖
These creatures can multiply quickly.
这些生物能迅速大量繁殖。
V-T（及物动词） If you multiply one number by another, you add the first number to itself as many times as is indicated by the second number. For example 2 multiplied by 3 is equal to 6. 乘
What do you get if you multiply six by nine?
6乘以9得多少？