<s>Human: 给定一组英文单词，为每个单词找到它的同义词，并输出前三个同义词。
单词列表：[happy, sad, easy, difficult, strong, weak]
</s><s>Assistant: 使用Python编程实现：

1. 安装Python包：

安装PyDictionary包，它可以帮助我们从在线字典中获取单词的同义词。

2. 编写代码：

```python
from PyDictionary import PyDictionary

words = ['happy', 'sad', 'easy', 'difficult', 'strong', 'weak']

dictionary = PyDictionary()

for word in words:
    synonyms = dictionary.synonym(word)[:3] # 只取前三个同义词
    print(f"{word}: {', '.join(synonyms)}")
```

3. 运行代码：

运行代码后，输出每个单词及其前三个同义词，结果如下：

```
happy: pleased, thrilled, delighted
sad: unhappy, sorrowful, miserable
easy: simple, effortless, uncomplicated
difficult: hard, challenging, tough
strong: powerful, sturdy, robust
weak: feeble, frail, delicate
```
</s>