verb · to put together or collect items or people to form a complete set or group

我们好不容易才凑成了一支球队。

verb · to end up forming or bringing about a specific outcome through a combination of factors

种种巧合凑成了这一段奇缘。

to add to an amount or number to reach a convenient or specific total

再加上两块钱，正好凑成一百块整。