hook up 托福

Ali was hooked up to an electrocardiograph.

阿里被连到了心上。

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.

路工人已把话接通。

The gas was hooked up.

煤气已接通了。

He hooked up the doorbell.

他了门铃。