同义连用是英语语法中的一个重要部分，它通过使用同义词或近义词来表达相同的意思。常见的例子包括"big"和"large"，"pretty"和"beautiful"，"happy"和"pleased"，"good"和"great"，"fast"和"quick"，"sad"和"unhappy"等。这种用法可以使语言更流畅，更生动有趣。
- Big and large: The whale is a big sea creature. / The whale is a large sea creature. （鲸鱼是一种巨大的海洋生物。）
- Pretty and beautiful: She is wearing a pretty dress. / She is wearing a beautiful dress. （她穿着一条漂亮的裙子。）
- Happy and pleased: I am happy to see you. / I am pleased to see you. （我很高兴见到你。）
- Good and great: The food is good. / The food is great. （这食物很好吃。）
- Fast and quick: He ran fast. / He ran quick. （他跑得很快。）
- Sad and unhappy: She is sad about the news. / She is unhappy about the news. （她对这个消息感到悲伤。）
