Je was op zoek naar: stepbrother (Engels - Chinees (Vereenvoudigd))

stepbrother
繼親

older stepbrother
异父异母的大哥

the report states that mrs. karawa has no significant family connections to fiji, having only a stepbrother there.
该报告称，karawa女士与斐济没有密切的家庭联系，只有一个同父异母(或同母异父)的兄弟。