| 1. | A variety of different symbols is in use .
符号的用法不统一。 |
| 2. | All the vehicles are in use .
没有一辆车闲着。 |
| 3. | The kiln had been in use for some time and was not in good condition .
该窑使用过一段时间，情况并不好。 |
| 4. | Today, thousands of systems are in use primarily on economic payoff .
目前，很多系统的采用主要是为了经济收益。 |
| 5. | In north america more than 70 different railway times were in use up to 1882 .
到1882年为止，北美使用过70多种铁路时间。 |
| 6. | Warning . this footage is in use . are you sure
警告.这素材在使用着.你确定吗 |
| 7. | The name must not be in use ; otherwise an
名称不得为正在使用的名称；否则将引发 |
| 8. | The file may be in use by another application
该文件也许正被另外的应用程序使用。 |
| 9. | But his credit cards have been in use all this time
可是信用卡却一直有人在用 |
| 10. | A file in the directory or subdirectory is in use
目录或子目录中的某个文件正在使用( |
