•We see each other at regular intervals - usually about once a month.我们定期见面——通常大约是每月一次。

•There's often a long interval between an author completing a book and it appearing in the shops.从作者完成一本书到它出现在书店里常常有一段较长的间隔。

•There will be two twenty-minute intervals during the opera.歌剧演出中有两次20分钟的幕间休息。

•He scored his first goal of the match three minutes after the interval.下半场刚开始三分钟，他就射入了他本场比赛的第一个进球。

•In the event of fire, the alarm will sound at 15-second intervals/at intervals of 15 seconds.发生火灾时，警报器每隔15秒鸣响一次。

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•an interval of a 5th (= the top note four notes higher than the bottom one)五度音程