1. 征购权：pre-emergency 备急 | pre-emption 征购权 | pre-entry 预先报关
2. 先发制人：Deterrence威慑 | Pre-emption先发制人 | Retaliate报复
3. 收买权：pre-employmentphysicalexamination 就业前体会 就业前体会 | pre-emption 收买权 | pre-enamel 前釉质
4. 臨時節目時間娛樂電視：63417臨時雇員人類各種行業extra hand; fill in; flyer | 63418臨時節目時間娛樂電視pre-emption | 63419臨時預算;暫定預算金融政府會計extraordinary budget
noun
1. a prior appropriation of something
e.g. the preemption of bandwidth by commercial interests
Synonym: preemption
2. the right to purchase something in advance of others
Synonym: preemption
3. the right of a government to seize or appropriate something (as property)
Synonym: preemption
4. the judicial principle asserting the supremacy of federal over state legislation on the same subject
Synonym: preemption