hook-up

Ali was hooked up to an electrocardiograph.

阿被连到了心电图仪上。

All the speakers hook up to a single amplifier.

所有喇叭都接在单一的扩音器上。

The wireman hooked up a telephone.

线路工人已把电话装好并接通。

He hooked up the doorbell.

他装好了。

The gas was hooked up.

气已装好并接通了。