Note to self: before next trip to beautiful but windy Start Point in South Devon, get hair cut very short, or buy hat that ties firmly under chin.
给自己提个醒儿：下次再来南德文郡斯达特岬角——这个风光优美却又风声瑟瑟的地方——的时候，一定得先把头发剪短，或者去买一顶可以紧紧系在下巴上的帽子。
Hutt and Speh (2001) note that such virtual marketplaces enable companies and their suppliers to conduct business in real time as well as simplify purchase processes and cut costs.
Hutt and Speh(2001)认为这种虚拟商场使公司和供应商能够实时供货，简化了购买过程，降低了成本。
In this note, no using the contraction method, we prove that if a graph G is one edge short of having two edge-disjoint spanning trees, then G has a cut edge or G is supereulerian.
本文不利用收缩方法，直接证明了：当图G至多差一边有两棵边不相交的生成树时，G是超欧拉图或者G有割边。
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