We see him snorting and mainlining cocaine.

我们看到他吸食并注射可卡因。

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。

The state, which has some responsibility for moulding minors, should try to ensure that its small citizens aren't mainlining sugar at primary school.

国家有责任塑造未成年人，它应该设法保证其小公民们不在小学里狂吃糖。

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。