One was avoiding sending any substantial message at all when nothing had changed since the prior request.

其中之一是，如果自前一个请求发出以后内容没有发生任何改变，则避免发送任何实质性消息。

youdao

"They always tell me they don't like their faces, " says Dr Kim, explaining what his patients request prior to surgery.

CNN: Plastic surgery boom as Asians seek 'western' look

He has been troubled by a persistent hamstring injury and, more significantly for the team, remains at the centre of a destabilising transfer saga after handing in a transfer request prior to the game at Old Trafford only to withdraw it two weeks later.

BBC: Has beating Manchester United undermined Leeds' season?

Hoyer also said that even though Obama, then a senator, did not request any earmarks in last year's spending bill, he did request projects for Illinois in prior years he served in the Senate.

CNN: Two Democrats urge Obama to veto spending bill