excuse from

基本解释

Getting an official excuse from the president is one thing.
从总统那里获得一个官方的借口是一回事。
As a theoretical prepare, the paper tries to discuss the general theory of excuse from the following angles: the conception, the theoretical basis, the inner system and the function.
有鉴于此，本文试图从免责的概念、根据、内部体系，以及功能这四个方面就其中一些基本问题进行讨论，以期为我国的刑法体系研究提供一定的理论准备。
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And then, excuse from pain;
再要求免除疼痛；

He also asked people to refrain from tossing stones at authorities, saying it gives them an excuse to respond with gunfire.
But I am a novelist, not a critic, and I can excuse myself from explication de texte on that ground.
但我是个小说家，不是批评家，对于我以此为根据而说明,我可以为自己找借口。
耶鲁公开课 - 1945年后的美国小说课程节选
But if you-- The reason I'm saying that is, you know, you know that you're getting married that day for example, we will excuse you from the quiz to get married.
但是如果你--我之所以这么说，你们懂的,比如你们那天要结婚，我们会取消你的考试让你去结婚。
麻省理工公开课 - 计算机科学及编程导论课程节选

This is an excuse from someone who does not understand networking at all.
FORBES: Here's Something Else You Won't Read on LinkedIn: Your Response To The Argument Networking Won't Save You