nonchalanceWiktionary 原文中文来自 ECDICTn.不关心，冷淡，无动于衷演变路径（由近及远）英语借自 ←法语 nonchalance继承自 ←中古法语 nonchalance词源说明Borrowed from French nonchalance.释义（英文）名词 NounIndifference, unconcern; carelessness; coolness; disregard, detachment.词族相关词（1）nonchalant