vestigial organ

基本解釋

The ESB becomes the equivalent of a human appendix for the IT department, a vestigial organ within the topology of deployed applications.
ESB 成了 IT 部門可有可無的東西，也成了已部署的應(yīng)用程序拓?fù)渲械睦圪槨?/li>
Because these structures can be traced back through the ancestors, they essentially serve as a marker of evolution; no organism can have a vestigial organ that hasn’t been found in its forefathers.
由於這些結(jié)搆的出現(xiàn)可以追溯到各代祖先，所以它們可以作爲(wèi)進(jìn)化的標(biāo)志；沒有一個(gè)生物躰身上的退化器官是祖先沒有的。