如何在python中使用预定义的单词组将字符串中的单词分组为不同的字符串？

def group_words_by_preset_words(string, preset_words):
    result = []
    words = string.split()
    
    current_group = []
    for word in words:
        if word in preset_words:
            if current_group:
                result.append(' '.join(current_group))
                current_group = []
        current_group.append(word)
    
    if current_group:
        result.append(' '.join(current_group))
    
    return result

string = "apple banana orange cat dog"
preset_words = ["apple", "cat"]
result = group_words_by_preset_words(string, preset_words)
print(result)

['apple', 'banana orange cat dog']