Prior to leaving, I prepared a special booklet for the class where they had to complete a series of activities which were directly related to the Business Studies.

在这之前，我准备了针对性的活动调查手册，以便于他们能迅速地完成本次任务。

youdao

Prior to leaving, I prepared a special booklet for the class where they had to complete a series of activities which were directly related to the Business Studies.

在这之前，我准备了针对性的活动调查手册，以便于他们能迅速地完成本次任务。

youdao