钳马衔枚

qian2 ma3 xian2 mei2

with horses and soldiers gagged (idiom), (of a marching army) in utter silence

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鉗馬銜枚|钳马衔枚 [qián mǎ xián méi] ► with horses and soldiers gagged (idiom) ► (of a marching army) in utter silence