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back someone up
साथ देना / समर्थन करना
to support someone or agree with them, especially in a difficult situation or argument

“When the manager blamed Arjun for the mistake, Meera stepped in to back him up with facts.”
जब मैनेजर ने अर्जुन को गलती के लिए दोषी ठहराया, तो मीरा ने तथ्यों के साथ उसका समर्थन किया।
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