Sst
abbr. 超音速运输机（supersonic transport）
🗣️ 情景例句
Ms Lin worked hard all year.
林小姐一年到头辛勤工作。
How much of a volume discount are you prepared to offer?
总折扣你们准备提供多少？
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。