Sst
abbr. 超音速运输机（supersonic transport）
🗣️ 情景例句
He came up with a bright idea.
他想到一个妙主意。
Will it be convenient for you to explain your plans to him?
你向他解释计划将是方便的吗？
When the bull got close to him, he clumsily stepped aside to let it pass.
观众欢呼起来，醉汉向人们鞠躬致谢。