twin

n. /twɪn/ B1

孪生子之一；双胞胎之一

One of two children born at the same time to the same mother.

仙境例句

The Fish-Footman had a twin who looked exactly like him, from his fish face to his curls.

鱼仆人有个双胞胎兄弟，长得和他一模一样，从鱼脸到卷发都一样。