原文：中国是个农耕古田，其生产周期与大自然四季一轮的周期同步。译文：China has been an old agricultural country, its production cycle keeps in step with the cycle ofthe four seasons.
【正确答案】：改译：As China has been an old agricultural country, its production cycle coincides with the cycle ofthe four seasons.
【题目解析】：两个句子之间需要用连词连接起来。这里我们用as，表示因果关系。“与……同步”用“coincide with”来翻译。
