双胞胎

例句：

1. 1. There are twins in the family.
   家里有两个双胞胎。
2. 2. The twins were born on the same day.
   这对双胞胎在同一天出生。
3. 3. They have twins, and they're very close.
   他们有双胞胎，关系非常亲密。