Dcm
abbr. 资料通信多工器；扩张型心肌病；直流电源（Direct-Current Main）
🗣️ 情景例句
It's hard for some older people to take all that noise.
一些老年人没办法忍受那些噪音。
How long is the ticket valid?
这车票有效期多久？
In cities he refused to travel in a rickshaw, a two-wheeled cart pulled by a bare-footed man.
在城里，他拒绝乘坐那种赤脚车夫拉的两轮人力车。