fix on

They fixed on him to speak on their behalf.

他们已经确定他作为代表。

We got a fix on the missile launching site.

们确定了导弹射场位置。

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

他眼睛盯着色余火。

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

模型飞尾是用钉子钉在飞, 不会掉下来。