Monodirectional
单向的
🗣️ 情景例句
Miss Pappas?
Pappas小姐
Everything has its time and that time must be watched.
任何事情都有好的时机，不要随意放过。
Our dog, Rex, used to sit outside our front gate and dark.
我家的狗雷克斯，过去常坐在大门外面叫。