As an aside, why are you able to use print F without writing out a prototype for it?

此外，为什么我们不用写printf的函数原型,而可以使用它呢？

哈佛公开课 - 计算机科学课程节选

Now it goes without saying that Milton has not been up to this point writing an allegorical poem. The creatures moving and speaking have been actual creations of the deity, with the strange exception of Medusa.

不用说，弥尔顿从未,写过寓言诗，这些移动着的说着话的生灵,是由神创造的，除了美杜莎这个奇怪的例外。

耶鲁公开课 - 弥尔顿课程节选