问题描述：
--I'm sorry I stepped outside for a smoke.I was very tired.
--There is no_____for this while you are on duty. A reason B excuse C cause D explanation
谢谢大家,翻译一下.上下,都翻译哦?二句
--There is no_____for this while you are on duty. A reason B excuse C cause D explanation
谢谢大家,翻译一下.上下,都翻译哦?二句
问题解答：
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