If you have no intent of mainlining your system calls into the public Linux kernel, then system calls are a convenient and efficient way to make kernel services available to user-space.

如果您无意将自己的系统调用加入公共的Linux内核中，那么系统调用就是将内核服务提供给用户空间的一种方便而且有效的方法。

youdao

Instead of mainlining sugar, reach for some long-term energy snacks.

来点能够长期补充能量的小吃来取代甜食吧。

youdao

Since he was an unusually small lad, he had been mainlining Greek and Roman poetry.

由于还是非常年轻的孩子，他依旧沉湎于希腊和罗马的诗歌。

耶鲁公开课 - 弥尔顿课程节选

It's like mainlining youth, I cried.

NPR: The iPod, an Electronic Fountain of Youth