| 1. | He had disappeared for three weeks after that .
这之后，他消声匿迹有三星期之久。 |
| 2. | The sound system is armed .
消声系统也严阵以待。 |
| 3. | There wouldn't be any hassle about any discontinuance of services .
人类中断服务，任何激烈的争论就会消声匿迹了。 |
| 4. | Suitable noise and vibration isolation, and protection against freezing must be provided .
必须提供适当的消声和隔振以及防冻措施。 |
| 5. | She knew it was only a matter of seconds before she hurtled over the cliff into oblivion .
她知道，她翻出悬崖消声灭迹，只是瞬息间的事情。 |
| 6. | So close kept she that at length almost everybody thought she had gone away .
她消声匿迹，线毫不露踪影，所以到后来，差不多人人都以为她已经离家出走了。 |
| 7. | Another approach is to use more effective sound-deadening insulation arround the engine compartment .
另一个办法是在发动机室的周围采用高效消声隔音材料。 |
| 8. | Life among the people involved in these events seemed to be suppressed and hidebound for a while .
被卷进这些事件里的人们，似乎有一段时间全都在生活中消声匿迹了。 |
| 9. | Reseach of the adaptive active noise control algorithm
自适应有源消声算法的研究 |
| 10. | Back into the relative obscurity he so richly deserves
.消声匿迹这是他应得的 |
