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单词	pin down
释义	pin down verb pinned down; pinning down; pins down transitive verb 1 : to cause or force (someone) to make a definite statement or decision about something Reporters tried to pin him down on the specific changes he wants to make to the tax laws. 2 : to find out (something) with certainty Can you pin down when the change occurred? I'm trying to pin the source of the problem down. Word History First Known Use 1765, in the meaning defined at sense 1
随便看	unplumed unplumes unpluming unplundered unpocket unpoetic unpoetical unpointed unpointednesses unpoise unpoised unpoisoned unpoisoning unpoisons unpolarized unpoliced unpolicied unpolish unpolishable unpolished unpolished rice unpolishes unpolishing unpolite unpolitely

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。