effective virtual address

例句：

1. 1. Thenew policy is expected to be effective in reducing pollution.
   新政策预计将有效减少污染。
2. 2.The manager's suggestion was effective in solving the problem.
   经理的建议解决了这个问题。
3. 3.The new software is effective at organizing tasks and reminding users of deadlines.
   这款软件在组织任务和提醒用户截止日期方面非常有效。