然后，交换台使电话线集中到一个地点。

Then switchboards brought phone wires into one location.

youdao

交换台接通了他的朋友。

The exchange put him through to his friend.

youdao

交换台目前正忙。

The exchange is quite busy at the moment.

youdao

当房里只剩他一个人时，他挂通了医院的交换台。

When he was alone, he telephoned the hospital exchange.

youdao

当房里只剩他一个人时，他挂通了医院的交换台，要求与米灵顿医生讲话。

When he was alone, he telephoned the hospital exchange and asked for Doctor Millington.

youdao

当房里只剩他一个人时，他挂通了医院的交换台，要求与米灵顿医生讲话。

When he was alone, he telephoned the hospital exchange and asked for Doctor Millington.

youdao