会议期间他走神了，但很快又集中注意力回到讨论上。

He got distracted during the meeting but quickly ___refocused on the discussion.

摄像师重新对焦镜头，拍下了清晰的特写照片。

The cameraman ___refocused the lens to take a sharp close-up shot.

团队调整了工作重点，将资源集中在开发新产品上。

The team ___refocused their efforts on developing a new product.