在会议和晚餐之间的这段空闲时间里，我回复了几封邮件。

During the ___intervening time between the meeting and dinner, I replied to several emails.

由于两座建筑物之间有一片绿化带，噪音大大减少了。

The noise was greatly reduced by the ___intervening green space between the two buildings.

当孩子们的争吵升级时，父母不得不介入调停。

The parents had to ___intervene when the children's argument got worse.