object lesson

noun

1. punishment intended as a warning to others

e.g. they decided to make an example of him

Synonym: exampledeterrent examplelesson

1. （作为教训或说明原则的）实例
If you describe an action, event, or situation as an object lesson, you think that it demonstrates the correct way to do something, or that it demonstrates the truth of a particular principle.

e.g. It was an object lesson in how to use television as a means of persuasion.
这是如何利用电视进行劝服的一个实际例子。

1. object lesson

1. 实物教学课：crop type 林型 | object lesson 实物教学课 | out of gear 齿轮脱开, 失常

2.

2. 示范;实物教学：nucleic acid 核酸 | object lesson 示范;实物教学 | of all time 有史以来

3. 吃一堑,长一智：Nutty as a fruitcake 有点疯狂;发疯的 | *Object lesson 吃一堑,长一智 | Odds and ends 零碎的东西