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	the height of the hell the hell out of the hell with the herd the hereafter the high ground the high jump the high road the Hill the himalaya the hole the holiday season the holidays the holocaust the Holy Family the Holy Ghost the Holy Grail the Holy Land the holy of holies the home front the Home Office the homeless the hoosegow the hopper

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