gǔ dài / zhàn zhēng / zhōng / jiàng lǐng / cháng / yǐ / míng jīn / zuò wéi / shōu bīng / de / xìn hào

古代战争中，将领常以鸣金作为收兵的信号。

In ancient warfare, generals often used the sound of a gong as the signal to retreat.