VOA慢速英语:Tools to Use with Gmail

短语讲解：

1. You just click Undo Send to prevent the message from being sent.

prevent from 阻止，防止
例句：Further treatment will prevent cancer from developing.
进一步的治疗将阻止癌症恶化。

2. To set up Undo Send, you first hit the gear icon on your Gmail page, and then go to Settings.

set up 建立; 准备; 安排
例句：I set up a ginger group on the environment.
我建立了一个积极从事环保的组织。

3. Every store, service and website wants you to sign up so they can send you emails about special deals, updates and more.

sign up 报名; 跟…签订合同
例句：Can I sign up for this course in advance?
我能事先申请上这一课程吗？

4. You can also use Unroll.me to stop any emails you no longer want to receive.

no longer 不再，已不
例句：It must know how to go away when its services are no longer required.
当不再需要这种服务时，这种帮助应该消失。