1.优先购买
2.〔建〕预先占用
1.〔经〕优先占有,以先买权取得
1.to do or say something that stops someone else’s plan or action
2.to be broadcast instead of another planned program
1.The currently running task (now preempted) is returned to the red-black tree through a call to put_prev_task (via the scheduling class).
当前运行任务（现在被抢占的任务）通过对put_prev_task调用（通过调度类）返回到红黑树。
2.In the standard 2. 6 Linux kernel, when a user space process makes a call into the kernel (through a system call), it cannot be preempted.
在标准2.6Linux内核中，当用户空间的进程执行内核调用时（通过系统调用），它便不能被抢占。
3.state and local laws that contradict federal laws or treaties are thus preempted and can be declared unconstitutional by a federal court.
已经存在的与联邦法律和条约冲突的州或当地的法律可以被联邦法庭宣称违反宪法的。
4.Remaining critical sections that cannot be preempted are short and perform deterministically.
剩下的不能被抢占的临界部分非常短，并且可以确定地执行。
5.It kept getting preempted for football and all that crap.
它一直排在在橄榄球这样的垃圾节目之前。
6.In the latter case, the lower priority thread is preempted by the thread of higher priority, which gets a chance to run instead.
在后一种情况下，底优先级的线程被高优先级的线程抢占，高优先级的线程获得运行的机会。
7.check_preempt_curr: This function checks whether the currently running task can be preempted.
check_preempt_curr：该函数将检查当前运行的任务是否被抢占。
8.Federal regulators preempted state consumer protections laws without adequately replacing these important safeguards.
美联储监管者要优先于州消费者保护法律，而又没有适当的重要安全措施的替代。
9.These questions were quickly preempted by new discoveries of more of these skulls.
随着更多此类头骨被发现，这些问题很快就淡出了人们的视野。
10.This means that other processing must be preempted to allow the ABS task to execute at the desired periods.
这意味着必须抢占其他处理，以便ABS任务能按照期望的周期执行。