CallBack

编程中的call back:

是委托所指向的具体方法。当委托被触发时，实际被触发的是call back函数。委托给与对方执行callback的权利与自由。

脱口秀中的call back:

今年追着看了《脱口秀大会5》。脱口秀大会中演员也经常提到call back，翻译成中文是呼应。通常是在表演较前段埋下伏笔或本身就是一个梗， 在表演结束时用不同的内容再次呼应这个伏笔/梗，达到表演结构的完整性/再次加强这个梗，让表演结束于高潮。

A callback, in terms of comedy, is a joke which refers to one previously told in the set. The second joke is often presented in a different context than the one which was used in the initial joke. Callbacks are usually used at or near the end of a set, as the aim is to create the biggest laugh at the end of a comic set. The main principle behind the callback is to make the audience feel a sense of familiarity with the subject matter, as well as with the comedian. It helps to create audience rapport. When the second joke is told, it induces a feeling similar to that of being told a personal or in-joke.

总体上我也很喜欢这种结构。

生活中的call back；

很久不联系的朋友（我单方面决定不再联系的朋友）发消息过来问近况，他这一举动让人联想起过去的种种。

我正在练习的瑜伽训练与正在阅读的一位网友的练习周报相呼应。在她的周报中获得启发。因为有在练习瑜伽，所以能更多地理解她所写的；反之，更多地理解她所写的，也在帮助我日常的练习。