1、ana- "up" + log- "count, reckon, that which is thought; ratio, proportion(引申义)" + -ous.
2、ana- "up" 表示向上、上面的一个参考，向它看齐，以它作为一个标准。
3、字面含义：count up, reckon up, the up level that something which is thought tend to parallel. => 也就向着、跟着、趋向上面的某个标准、参考对象看齐，来进行思考、计算、说话等；由此引申为：比喻、类比、类推、模拟、类似等含义。
4、其实，该词在原始的希腊语中表示：proportionate，也就是使其与上面的某个标准、参考对象成比例；使其与上面的某个标准、参考对象相称或者均衡。后来，被借用到拉丁语中，其含义才变成了今天的含义。

1. Sleep has often been thought of as being in some way analogous to death.

人们常常认为睡眠在某种意义上来说类似死亡。

2. The gills of fishes are analogous to the lungs in terrestrial animals.

鱼类的鳃与陆上动物的肺类似.

3. The national debt is analogous with private debt.

国债和私人债务类似.

4. The two situations are roughly analogous.

两种情況大致相似.

5. The company is in a position closely analogous to that of its main rival.

该公司与主要竞爭对手的处境极为相似.