The incident brought the problem of violence in schools into sharp focus.

这次事件使校园暴力成为焦点问题。

《牛津词典》

If your subject is not in the center of the picture, you need to lock the focus to create a sharp picture.

假若你的拍摄对象不是在照片中央，你就需要锁定焦点已获得清晰的相片。

youdao

If your subject is not in the center of the picture, you need to lock the focus to create a sharp picture.

假若你的拍摄对象不是在照片中央，你就需要锁定焦点已获得清晰的相片。

youdao