谁能把这句英语的大概意思告诉我
问题描述：
谁能把这句英语的大概意思告诉我
it is important to destroy the testing documents and confirm that fact by returning letter duly signed as soon as the other bank receives the canceling letter.
答
重要的是要销毁的测试文件,确认信寄回正式签署这一事实只要其他银行收到取消信.
本人才疏学浅,大概就是这么理解这句话的意思