(a) theory constitutes infringement1 illegal. A tort is a violation of the provisions of the law of obligations, infringe other's person right and property rights.2 facts of damage. Objective there is the fact that the damage. The damage isrefers to the behavior by others property damage and mental damage. Damageis the objective consequence of illegal acts.3 causality. That is to say, the implementation of a behavior is due to the damage caused by the fact that result.4 the actor has subjective fault. Fault is intentional and negligent according to its type. But as long as the actor has fault subjectively, whether intentional or negligent, should bear the responsibility for compensation.(two) influence of WTO on Chinese international trade legal systemAfter China's accession to the WTO, must be unified on trade policy, laws and regulations promulgated by the central government.First of all, the local government institutions to the popularization of WTO and China's entry into the WTO legal knowledge, grasp the overall national policy of opening to the outside world, especially with the trade of import and export goodsand the opening of the service industry related laws and regulations, grasp the general direction.Secondly, the local government should according to the relevant policies of theregion's central economic policy, trade policy and industrial policy, can not be contrary to WTO rules and our commitment to WTO.Some of the more common law, especially in international economic law. Allpeople's Congress passed, China signed or acceded to the treaty will come into force in china.