U.S. Secretary of State John Kerry has pledged nearly a billion dollars in new U.S. aid for Syrian refugees. He made the pledge at an international donor's conference. Kerry called for the Syrian government and Russia to halt attacks on rebel-held areas in order to let humanitarian aid through. ___________________________U-N Secretary-General Ban Ki-Moon was pleased. "Never has the international community raised so much money on a single day for a single crisis." Ban Ki-Moon 美国国务卿约翰.克里承诺美国捐助十亿美元帮助叙利亚难民.他是在国际捐助会议上做出该承诺的.克里呼吁叙利亚政府军与俄罗斯停止向叛军控制区发动袭击,以便让人道主义救援通过.___________________________.联合国秘书长潘基文对此非常高兴. 他表示:"此次筹集的款项创国际社会单日为某个危机捐款数额的新高."