Dama
abbr. 按需分配多址接入（Demand Assigned Multiple Access）
🗣️ 情景例句
I remember exactly.
我记得很清楚。
Why are you so sad?
你为什么这样伤心？
who produced it with a flourish and pointed out a microscopic 'o' beside the time of the arrival of the train at his station;
站长拿着时刻表一挥手，指着那趟列车到站时刻旁边一个很小的圆圈标记。