Communication channels
[电] 通讯波道
🧩 词语组成解析
communication
[kə,mjunɪ'keʃən]
n. 通讯，通信;交流;书信;传达;
com共同+muni交流+cat=cate表动词 + ion表名词 → communicat(e)沟通 + ion表名词 → 通讯；传达；交通
n. 通道；水槽；隧道；频道；录音声道（channel的复数形式）
🗣️ 情景例句
The cradle will fall,
摇篮会掉落
If things were to be done twice all would be wise.
事事倘能做两次，人人都可称明智。
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。