信号预占优先权政策单元
Any court ruling supporting preemption could be overturned through legislation--although such a rapid reversal of policy could still turn the FDA into a political football.
FORBES: Magazine Article
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。