fix on

They fixed on him to speak on their behalf.

他已经确定他作为代表发。

We got a fix on the missile launching site.

确定了导弹发射场的位置。

His eyes are fixed on the red embers of the fire.

他的眼睛盯着色的余火。

The tail is fixed on the model plane with nails; it cannot come off.

模型的尾是用钉子钉在的, 不会掉下来。