sorry to keep you waiting for such a long time .I must say sorry for the delay(保持句意不变)sorry to keep you waiting for such a long time.i must_____ _______ the delay
问题描述：
sorry to keep you waiting for such a long time .I must say sorry for the delay(保持句意不变)
sorry to keep you waiting for such a long time.i must_____ _______ the delay
答
apologize for
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答
apologize for