twins
Two siblings from the same birth, often looking very similar if not identical.
This also includes fraternal twins (twins of opposite genders, or twins of the same sex but who aren't identical).
Examples
另请参见
This tag implicates siblings (learn more).
The following tags implicate this tag: twincest (learn more).
这还包括异卵双胞胎（异性双胞胎，或同性但不相同的双胞胎）。