She's so confused about why the frog is connected to the balloon.

她十分困惑 为什么青蛙与气球相连

He asked to be connected to the central switchboard.

他要求转接到电话总机。

These appliances should not be connected to power supplies.

这些装置不应该接通电源。

It can be connected to a PC for the transfer of information.

它可以连接到个人电脑上进行信息转录。

Each point should be connected to the next in series by a line.

每个点都应该通过一条线连接到下一个点上。

Each adapter can be connected to 21 VLANs.

每个适配器可以连接到21个VLAN。