这是一份不可撤消信用证、是不能更改的。
It Is an irrevocable letter of credit which can not be changed.
这是一份不可撤消信用证，是不能更改的。
It is an irrevocable letter of credit which can not be changed.
这是一份不可撤消信用证，是不能更改的。%。
It is an irrevocable letter of credit which can not be changed.
这是一份不可撤消信用证，是不能更改的。%。
It is an irrevocable letter of credit which can not be changed.
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