additional state

例句：

1. 1. We need to addsome additional information to the report.
   我们需要在报告里添加一些额外的信息。
2. 2. The teachergave us additional homework to complete before theexam.
   老师给了我们额外的家庭作业，让我们在考试前完成。
3. 3. Theyadded an additional layer ofsecurity measures to their defense system.
   他们增加了一层额外的安全措施到他们的防御系统。