step-parent
noun [ C ] mainly UK (also mainly UK step parent); (US usually stepparent) uk/ˈstepˌpeə.rənt/ us/ˈstepˌper.ənt/
继父;继母
a parent who is married to the father or mother of a child, but who is not that child's own father or mother; a stepfather or stepmother
We offer confidential advice to step-parents on creating good relationships with their teenage stepchildren. 我们在保护隐私的前提下为继父母提供建议，帮助他们与十几岁的继子女建立良好的关系。