focus on

vt. 集中在

例句与用法：

The coordinated turning of the eyes inward to focus on an object at close range.

会聚眼睛向内的协调转动，从而聚焦在近处的某物体上

He was too shortsighted to focus on the object.

他由于近视过深而无法把视力焦点对准在该物体上。

The focus on my camera isn't working properly.

我的照相机上的调焦装置有毛病。

详细释义：

(使)集中于

He focused his eyes on me.

他注视着我。