If something is commonplace, it happens often or is often found, and is therefore not surprising. 常见的
adjective [原级] 平凡的，不足为奇的；平庸的，陈腐的
Inter-racial marriages have become commonplace. 不同种族间的通婚已经变得很常见。
noun [具体名词] 司空见惯的事，常见的东西；老生常谈，陈词滥调
Simpson's much vaunted discoveries are in fact commonplace in modern sociology. 辛普森的那些被过分称赞的发现在现代社会学中实际上是老生常谈。
- commonplace 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 44 Patterns of culture commonplace 形容词: 平凡的
- Lesson 51 Predicting the future
