assignment of contract

例句：

1. 1. The teacher assigned us to writea report on the topic.
   老师分配我们写一篇关于这个主题的报告。
2. 2. The studenthas an assignment due tomorrow.
   学生明天有一项作业要交。
3. 3. The company has assignedhim to lead the project.
   公司已经指派他领导这个项目。