hook up 托福

1.Ali was hooked up to an electrocardiograph.

阿里被连到了心电图仪。

2.All the speakers hook up to a single amplifier.

所有喇叭都接在单一的扩音。

3.The wireman hooked up a telephone.

路人已把电话装好并接通。

4.He hooked up the doorbell.

他装好了门铃。

5.The gas was hooked up.

煤气已装好并接通了。