有一个特定的列表，找出存在的次数

def find_occurrences(lst, threshold):
    occurrences = {}
    
    # 计算每个元素的出现次数
    for item in lst:
        if item in occurrences:
            occurrences[item] += 1
        else:
            occurrences[item] = 1
    
    # 输出存在次数大于等于阈值的元素
    result = []
    for item, count in occurrences.items():
        if count >= threshold:
            result.append(item)
    
    return result