应支付的数额 meaning in English

the due amount

Where the assured has effected an insurance in express terms against any liability to a third party , the measure of indemnify , subject to any express provision in the policy , is the amount paid or payable by him to such third party in respect of such liability
被保险人已通过明示条款对第三方的任何责任进行投保，根据保险单上明示条款的规定，获得补偿的数额是其就这一责任向第三方支付或应支付的数额。