| 1. | There are telephone extensions in every office .
每间办公室都有电话分机。 |
| 2. | She has an extension in the kitchen and in the bedroom .
她的厨房和卧室都有电话分机。 |
| 3. | An additional telephone connected to a main line
电话分机一部连到主线上的增设电话 |
| 4. | Each telephone served by a private branch exchange
由专用小交换机提供服务的电话分机。 |
| 5. | I ' m sorry the extension is busy just now
对不起，电话分机刚才占线。 |
| 6. | Some people also have a telephone extension by the bedside
有些人在床边放置一台电话分机。 |
| 7. | I ' m sorry the extension is busy just now
对不起，电话分机刚才占线。 |
| 8. | Thirdly , we design an extension telephone system
接着本文设计了一个企业内部电话分机系统。 |
| 9. | The specification and test methods for conference telephone set
会议电话分机技术要求及测试方法 |
| 10. | Customer service : 6888 1999 extension 197
客户服务：电话分机197 |
