proxy
/ˈprɒksɪ/noun
(pl. -ies)
1
- mass noun the authority to represent someone else, especially in voting or marrying（尤指投票、结婚）代理权, 代表权：
Britons overseas may register to vote by proxy.
海外的英国人可以通过代理注册投票。
1.1
- count noun a person authorized to act on behalf of another（经授权的）代理人, 受托人。
1.2
- count noun a document authorizing a person to vote on another's behalf投票委托书。
2
- a figure that can be used to represent the value of something in a calculation替代值：
the use of a US wealth measure as a proxy for the true worldwide measure.
用美国财富标准作为全球财富标准的替代值。
词源
late Middle English: contraction of PROCURACY.