《资治通鉴·晋纪·晋纪十九》
前燕国在龙山出现黑龙和白龙，交首戏游，丢下龙角离开。
燕有黑龙、白龙见于龙山，交首游戏，解角而去。
In the Former Yan, a black dragon and a white dragon appeared in the Longshan Mountains, they played around with their heads intertwined, and left after dropping a dragon's horn.
<s>[INST] Give the modern Chinese and English translation for the following Classical Chinese passage: 燕有黑龙、白龙见于龙山，交首游戏，解角而去。 [/INST] Modern Chinese: 前燕国在龙山出现黑龙和白龙，交首戏游，丢下龙角离开。 English: In the Former Yan, a black dragon and a white dragon appeared in the Longshan Mountains, they played around with their heads intertwined, and left after dropping a dragon's horn.</s>
Give the modern Chinese and English translation for the following Classical Chinese passage: 燕有黑龙、白龙见于龙山，交首游戏，解角而去。
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Modern Chinese: 前燕国在龙山出现黑龙和白龙，交首戏游，丢下龙角离开。 English: In the Former Yan, a black dragon and a white dragon appeared in the Longshan Mountains, they played around with their heads intertwined, and left after dropping a dragon's horn.
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