原句：His function is analogous to that of a judge, who must accept the obligation of revealing in as obvious a manner as possible the course of reasoning which led him to his decision.

分析：

1. 句子结构分析

His function is analogous to that of a judge 是句子主语，其后的 who must accept the obligation of revealing in as obvious a manner as possible the course of reasoning which led him to his decision 为非限制性定语从句，用于修饰名词 a judge，在该定语从句中又包含有另一定语从句which led him to his decision（修饰名词course）。

2. that 的用法

在主句His function is analogous to that of a judge中，that 为替代词，用于替代 function。类似例句如：

Is Jim’s case analogous to that of John Brown? 吉姆的案子与约翰·布朗案相似吗？

The company is in a position closely analogous to that of its main rival. 该公司与主要竞争对手的处境极为相似。

They saw the relationship between a ruler and his subjects as analogous to that of father and children. 他们认为统治者和臣民的关系可比拟成父亲和孩子的关系。

3. function 的理解

主句中的 function 在此不表示“功能”，而表示“职责”。又如：

I'm not quite sure what my function is within the company. 我拿不太准自己在公司里有什么职责。

In your new job you will perform a variety of functions. 在新的工作岗位上，你将要履行许多不同的职责。

5. revealing 的理解

定语从句中的 revealing 是及物动词，它的宾语是 the course of reasoning，两者之间被方式状语in as obvious a manner as possible 隔开。reveal 的本义是“使显露，展现，显示”，在这里可理解为“告诉大家”。

6. accept 的理解

句中的 accept 在此不表示“接受”，而表示“承担”。又如：

He accepts full responsibility for what happened. 他承认对所发生的事负完全责任。

You have to accept the consequences of your actions. 你得对你的行为后果负责。

The University will not accept responsibility for items lost or stolen. 物品遗失或被窃，大学概不负责。

句子大意：他的职责与法官的职责相似，他必须承担这样的责任：用尽可能清楚明了的方式来告诉大家自己做出决定的推理过程。