أنتَyou عُذرِيmy excuse إذاwhen أَوْكَunclear as written; possibly ‘they see you’ ولَكَنْand yet
أنتَ عُذرِي إذا أَوْكَ ولَكَنْ
كيْفَhow عُذْرِيmy excuse إِذاwhen رَأوْكَthey see you تَخُونُyou are unfaithful
كيْفَ عُذْرِي إِذا رَأوْكَ تَخُونُ
You are my excuse when [they see you?], but—
What is my excuse when they see you being unfaithful?