Two yán? For example, heredity (reproduction, offspring continuation)
Vernacular is generally the second sound.
Jan, ㄧㄢ.
In addition, Ji Yun was cut and the voice was prolonged. Gold teeth. "Zhou Li" looked at worship and Yan. Reading "Zhengzhu" was postponed. "Shu" Yan, Yan Ji also. The "Six Hearts Ganquan Mansion" is high and steep. Ye quanyun. "Direct Tone" can be translated. The word Yan is from Yun, not from Yun.
Textual research: [Zhou Li] looks at Yan. Read "Zheng Zhu" in flat voice. I would like to read the original text in a quiet voice and postpone it.
From Kangxi dictionary
reference data
Kangxi dictionary. Zhang Yushu and Chen Tingjing, China: Qing government, 17 16.