per-是徹底的,peruse是徹底地用,引申為仔細地看。
<To refresh my memory of the old days, I asked for some Dailies of the thirties from the morgue, sat down at the large round oak table at the end of the editorial room on the second floor, and began riffling through the musty pages. Soon a burly middle-aged man appeared and seated himself at the table to peruse some recent issues of the paper and take notes. —Arthur Miller, Timebends, 1987>