1)unspent balance,未用余额2)unused balance of L/C,信用证未用余额3)of credit,信用证未用余额4)unused balance of letter of credit,信用证未用余额5)unused defalcation,挪而未用6)virgin,未用过的7)unassigned number,未用号码8)inexhausted,未用尽的9)amount not taken up,未用金额10)unused instruction,未用指令
用法例句
The Research of Difficult Problem about the Crime of Defalcation——From the point of the case of unused defalcation;