你可能注意到了，这周办公室安静了不少。
You may have noticed that the office has been quieter this week.
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May英 /meɪ/|美 /meɪ/
noticed英 /ˈnəʊtɪst/|美 /ˈnoʊtɪst/
解释
may 情态动词表推测；noticed 是过去分词；may have noticed 表示对之前情况的推测，意为“可能已经注意到”。
You may have noticed that the office has been quieter this week.
may 情态动词表推测；noticed 是过去分词；may have noticed 表示对之前情况的推测，意为“可能已经注意到”。