Sst
abbr. 超音速运输机（supersonic transport）
🗣️ 情景例句
He's not making much progress with his English.
他的英语进步不大。
Suzanne likes the feel of the dough as she makes bread.
苏珊娜喜欢制造面包时的生面团的那种感觉。
Children often love to play this game.
孩子们常爱玩这种游戏。