人类从原始社会发展到今天，从部落发展到国家，无论哪一个时期，大国和小国都相互共存着。大国和小国之间的关系只要处理得好，他们都能通过对方得到某种程度上的利益。
參考答案:Human beings has developed since the primitive society ,from the tribe to a nation,no matter which period it is,the strong country and the poor country coexist mutually.If there'is a fine relationship between them,generally speaking,they are all able to benefit from each other.
还是意译出来比较自然一点~~
