如何以相反的顺序从字典中删除重复的键(python)

def remove_duplicates(dictionary):
    reverse_keys = []
    for key in dictionary:
        reverse_keys.append(key)

    reverse_keys = reverse_keys[::-1]
    new_dict = {}
    for key in reverse_keys:
        if key not in new_dict:
            new_dict[key] = dictionary[key]

    return new_dict

my_dict = {"a": 1, "b": 2, "c": 3, "a": 4, "d": 5}
result_dict = remove_duplicates(my_dict)
print(result_dict)

{'d': 5, 'c': 3, 'b': 2}