irrecoverable造句

irrecoverable loss of sight
永久的失明

The depression, however, caused many irrecoverable accounts and Dr. Sim started to run up debts.
然而经济萧条造成许多呆帐,他也因此负债累累.

All business are to be transacted against confirm and irrecoverable letter of credit.
所有交易都应采用保兑的不可撤销信用证支付.