To break an arrow as a solemn pledge or oath; to make an unshakeable vow, signifying absolute determination and commitment.
他们折箭为誓，决定共同完成这个艰巨的任务，永不退缩。
They broke an arrow as a solemn vow, deciding to complete this arduous task together, never backing down.
Era:
Ancient
Frequency:
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