Unfaithfulness
n. 不忠实；不信守婚誓
✅ 同义词
🔴 反义词
📖 牛津释义
unfaithfulness
n [U].
🗣️ 情景例句
to read to the students--their own children, really.
共同为学生们， 其实就是他们自己的孩子， 朗读
There must be someone behind the door.
门后必然有人在。
Could you do me a big favor?
能否请你帮我个忙？