有一段英文文本，其中有单词连续重复了2次，编写程序检查重复的单词并只保留一个。用python写代码

以下是Python的代码：

text = "This is is a test test sentence."

words = text.split()
unique_words = []

for word in words:
    if word not in unique_words:
        unique_words.append(word)

new_text = " ".join(unique_words)
print(new_text)

输出为："This is a test sentence."，其中重复的单词已经被删除了。