Imbittering
vt. 加苦味于；使难受；使受苦；加重（等于embitter）
🗣️ 情景例句
Please, sit down. What can I do for you?
请坐下。我能为你们做什么呢？
Please turn in your paper before leaving.
请在离开前将论文交上。
But I didn't see much during the flight because there was too much cloud.
但我在飞行途中并没有看到什么东西，因为云层很厚。