Pentecost
/ˈpentɪkɒst/noun
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- the Jewish festival of Shavuoth.（犹太人的）五旬节, 七七节, 收获节。
词源
Old English pentecosten, via ecclesiastical Latin from Greek pentēkostē （hēmera） 'fiftieth (day)' (because the Jewish festival is held on the fiftieth day after the second day of Passover).