additional extra

例句：

1. 1. We need to addan extra hour to our schedule for themeeting.
   我们需要在会议时间上额外增加一个小时。
2. 2. The company has added several new productsto its line of products.
   该公司已经增加了几个新产品到其产品线中。
3. 3. The teacherasked us to add some additional information toour report.
   老师要求我们添加一些额外的信息到我们的报告中。