Telephone switching system
[计] 电话交换系统
🧩 词语组成解析
telephone
['tɛlə'fon]
n. 电话;电话机;（电话机的）话筒;受话器;
vt.& vi. 以电话传送（消息），给（某人）打电话;用电话与（某人）交谈;
tele远，传送+phone声音→远方声音传过来 → 电话
[计] 交换\\n[经] 转换, 调换, 调头
🗣️ 情景例句
Grandma, I bet you have a lot of stories to tell.
奶奶，我敢打赌你会说很多故事。
The wolf and fox are both privateers.
狐狸与狼，抢劫大王。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。