1.one of two people born with their bodies joined together. This is now considered offensive and it is more polite to say conjoined twin.
1.To his surprise, this gave rise to a Siamese twin embryo where an extra head was generated from the transplanted cells.
没想到，这产生了一个连体胚胎，植入的细胞产生了一个额外的头部。
2.If you unscrew it, it actually looks like a Siamese twin bulb, with two bases and one head.
如果你拧开它，它看去真的就像连体孪生灯泡，有两个基座，两个灯头。