語法是of所有格，中文意思是某物的……
例如
成名的弊端之一是失掉了隱私。One of the penalties of fame is loss of privacy.
There were periods of sulking， of pronounced distance， of coldness.出現階段性的愠怒、明顯的疏遠和冷淡。
The birth of Christ was the beginning of a major epoch of world history.
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