Dsf
abbr. 色散移位光纤（Dispersion Shifted Fiber）；个人金融理财业务（direct sales force）
🗣️ 情景例句
There's nobody here!
这里一个人都没有
I remember the girl whose father earns $ 300 a day.
我记得那个女孩的父亲一天赚三百元。
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。