The United States has submitted a draft proposal for UN arms embargo on South Sudan after its president Salva Kiir refused to sign a peace deal. His rival Riek Machar has already put his signature under the accord. Alion Sheeport reports. \"The agreement should put an end to the 20 months old conflict, which bid troops loyal to president against forces ally to his former deputy Riek Machar. It should be signed on Monday, but Salva Kiir said he needed more time for consultations. Timing will be of the essence now, and arms embargo, if agreed, could come into effect as early as September 1st. ________________________________________________________ 在南苏丹总统萨尔瓦`基尔拒绝签署和平协议之后,美向联合国提交了决议草案,准备对其实施禁运.他的对手里克`马查尔已经签署了和平协议.爱理安肖特报道."这份协议将结束长达20个月的冲突,终止总统的军队联盟和其前副手里克`马查尔之间的对抗.这份本来在周一应该签署的协议,由于萨尔瓦`基尔表示他需要更多的时间进行协商而没有达成.时间现在来说是最宝贵的.同时,如果武器禁运令通过,将于9月1日开始生效._____________________________________________________