You use multiple to describe things that consist of many parts, involve many people, or have many uses.
He died of multiple injuries.
他死于多处受伤。
The most common multiple births are twins, two babies born at the same time.
最为常见的多胞胎是双胞胎,即两个婴儿同时出生。
multiples
If one number is a multiple of a smaller number, it can be exactly divided by that smaller number.
Their numerical system, derived from the Babylonians, was based on multiples of the number six.
他们的数制是袭用巴比伦人的,以数字6的倍数为基准。