Self-service travel service application functionality as with more diverse ticket ordering, business travel booking, business, leisure and other forms of consumer services.
自助商旅服务应用功能为商务人士提供更多元化的票务订购、商旅预定、商务、休闲等多种形式的消费服务。
2
Content: Pinyin, tones and basic grammar. Self-introduction and daily communication, such as ordering food, taking a cab as well as shopping.
课程内容：汉语拼音、声调和简单语法，基本的自我介绍和日常交流，如点餐、打的和购物。
3
In this paper the operators do not possess any continuity and compactness, and that the operator is a self mapping on ordering interval is not required.