ㄧㄢˊyánㄔㄤˊcháng

  1. 久長伸長文選·班固·東都·》:延長天慶。」

  2. 增多時日考試時間延長十分。」、展覽延長。」延伸提前縮短

Yanchang county in Yan'an 延安[Yan2 an1], Shaanxi, to prolong, to extend, to delay
prolonger, allonger