| 1. | The air is filled with angry shouts, the intermittent siren .
空气中充满着人们愤怒的吼声，断断续续的警报声。 |
| 2. | I overheard snatches of their conversation
我无意中听到他们断断续续的谈话内容。 |
| 3. | They call each other only on an intermittent basis
（他们只是断断续续的联系。 ） |
| 4. | They had an on - and - off relationship for one year
（他们一年来有断断续续的感情。 ） |
| 5. | It has been raining off and on since yesterday
从昨天起就断断续续的下着雨。 |
| 6. | Since / from yesterday on , it rains on and off
从昨天起就断断续续的下着雨。 |
| 7. | It was raining off and on since yesterday
从昨天起就断断续续的下着雨。 |
| 8. | We don ' t go the theatre regularly , just off and on
我们不是有规律地去剧院，只是断断续续的。 |
| 9. | It rain off and on since yesterday
从昨天起就断断续续的下着雨。 |
| 10. | Stopping and starting at intervals
断断续续的间隔停歇和启动 |
