根据快递企业(express delivery enterprise)的性质及规模，可将我国快递企业分为四类。一是外资企业，外资快递企业具有丰富的经验、雄厚的资金和发达的全球网络;二是国有企业，国有快递企业依靠其背景优势和完善的国内网络在快递市场处于领先地位;三是大型民营企业，大型民营快递企业在局部市场站稳脚跟后，已逐步向全国扩张;四是小型民营企业，这类快递企业规模小、经营灵活但管理比较混乱，主要经营特定区域的同城快递(intra-city express delivery)和省内快递业务。

　　参考译文：

　　According to the nature and scale, express delivery enterprises in China can be divided into four kinds, including foreign-funded enterprises, state-owned enterprises, large-sized private enterprises and small-sized private enterprises. The foreign-funded enterprises have rich experience, sufficient fund and a developed global network; the state-owned enterprises lead the market due to their advantageous background and widespread domestic network; the large-sized private enterprises gain a foothold in local markets and have gradually expanded to the rest of the country; the small-sized private enterprises, characterized by small scale, flexible operation and messy management, specialize in intra-city and provincial express delivery in specific regions.