如果没有另一方的事先书面批准，任何一方都无权转让合约下产生的权利和义务给第三方。
Neither Party shall have the right to transfer rights and obligations arising under this Contract to third parties without the prior written approval of the other Party.
因英国石油公司是这家联营企业的龙头老大，又是出事平台的租用方，所以对这次漏油事件有不可推卸的责任——理所当然有义务承担“清油”与一些第三方损失赔偿费用。
As BP led the consortium which owned the well and was leasing the rig, it is responsible for the spill-and therefore liable for the costs of cleaning up and some third-party damages.
咨询公司可就部分履行其在本合同项下的义务而与第三方签订分包合同，但须得到客户的事先书面同意。
Subject to obtaining the prior written consent of Client, Consultant may enter into subcontracts with third parties for the partial performance of its obligations hereunder.
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