基本解释未指定用途的,无义务的同根派生 unobligated相关词英汉例句Balance of unobligated allocations brought forward; 未支配拨款结余承前;unobligated balance 不结转的年终预算结余unobligated appropriation 未承付的拨款unobligated fund 未承诺义务的资金unobligated更多例句