1、
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.
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2、
3、
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.
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