taking your attention away from something else

The proposal was dismissed as a diversionary tactic intended to distract attention from the real problems. 该提案被认为旨在转移人们对真实问题的注意力而遭到驳回。

Military personnel would be distracted with diversionary moves so others could break into the base. 军事人员的注意力会受到转移，以便其他人能够闯入基地。

dealing with someone, for example someone who has committed a crime, by giving them special treatment, rather than by sending them to prison, etc.

The money went to the district attorney's office to pay for a diversionary scheme designed to reduce the prison population. 这笔拨款由司法区的联邦检察官用于资助转化性培训项目，以减少入狱犯人的数量。

There are a number of well-resourced diversionary schemes for young offenders. 有好几个资源充足的转化性培训项目可供失足青少年参加。

going in a different direction because a road, railway line, etc. is closed

Extra time was required to send trains via the diversionary route. 发送火车沿改道线路行驶需要额外的时间。