assign a buffer

例句：

1. 1. Themanager has assigned a new team leader to the project.
   经理已经指派了一个新的项目经理来负责这个项目。
2. 2. The teacher assigned homework for the next day's lesson.
   老师布置了明天课的作业。
3. 3.The company has assigned a new marketing director to oversee the campaign.
   公司已经指派了一位新的市场营销总监来监督这次活动。