fix on

They fixed on him to speak on their behalf.

们已经确定作为代表发言。

We got a fix on the missile launching site.

我们确定了导弹发射场位。

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

眼睛盯着色余火。

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

机机尾是用钉子钉在机上, 不会掉下来。