负平衡被称为贸易逆差，或非正式的贸易逆差。
Negative balance is known as the trade deficit, or informal trade deficit.
你需要在传统意义上的正式和电邮的非正式中找到平衡。
You need to strike a balance between traditional formality and email informality.
你需要在传统意义上的正式和电邮的非正式中找到平衡。
You need to strike a balance between traditional formality and email informality.
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