| 1. | Methods for registering and unregistering listeners
方法，用于侦听器的登记和取消登记。 |
| 2. | From the mailing list at any time using the same method
您可以随时使用同样的方法取消登记 |
| 3. | The unregister operation should be done in a
取消登记的操作应当在 |
| 4. | Number cancelled in 1999
1999年取消登记车辆数字 |
| 5. | Disqualification from registration
取消登记资格 |
| 6. | Listener registration and unregistration should always be done in matched pairs
侦听器登记和取消登记应当结对进行。 |
| 7. | It registers a listener with a component , performs some actions , and then unregisters the listener
它在组件上登记侦听器，执行某些动作，然后取消登记侦听器： |
| 8. | But even when you do so , you must also ensure that the unregistration actually executes at the right time
但是即使这么做，也必须保证是在正确的时间执行取消登记。 |
| 9. | All items on the registration form must be filled in , or else participants shall be disqualified for registration
表格上所有项目均须填写，否则将被取消登记及抽签资格。 |
| 10. | This situation is generally indicative of a bug - that a listener was registered but not unregistered , and then was registered again
这种情况通常是bug的迹象侦听器登记了，但是没有取消登记，然后再次登记。 |
