object lesson

音标发音

"But it is an object lesson about reading the terms and conditions, " he added.
“但是这是一个阅读用户说明的实际教训。” 他补充道。
His obedience is now double-minded - and he provides a profound object lesson in what happens when we try to serve two masters.
他此时的顺服已经三心二意了 - 彼得给我们上了有深刻意义的一课，告诉我们，侍奉两个主人时，就会发生的事。
If you must hold yourself up to your children as an object lesson (which is not at all necessary), hold yourself up as a warning and not as an example.
如果你必须要把自己看成是孩子的实物教材（其实根本没有必要），那就把自己当成是孩子的一个警示吧，而并非是范例。

It was perhaps an object lesson in how to do it right this time.
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This would be an object lesson to states harboring terrorists: Cross the civilized world, and you will be punished.
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It was also an object lesson in how even the most sincere, well-intentioned comment can suddenly plunge you into a debate.
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an action or story that teaches you how or how not to act, or that clearly shows the facts of a situation, usually a bad one

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.