surrogate

替代者、替代品、代替物

For many lonely people, a pet becomes a surrogate for human company.

对许多孤单的人来说，宠物成了人际陪伴的替代品。

代理孕母

The couple decided to have a child through a surrogate.

这对夫妻决定透过代理孕母生小孩。

代理人、代言人

The candidate sent surrogates to speak at rallies across the state.

那位候选人派代言人到全州各地的造势场合发言。

替代的、代理的限定名词前

He treated his older cousin as a surrogate father.

他把年纪较大的表哥当成代理父亲看待。

替代性的、间接的多用于学术或医学

Researchers used blood pressure as a surrogate measure of risk.

研究人员以血压作为风险的替代指标。