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.
这是一份不可撤消信用证，是不能更改的。%。
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