streetlightWiktionary 原文中文来自 ECDICTn.街灯，路灯构词拆分street词根/词干+light词根/词干词源说明From street + light.释义（英文）名词 Noun(countable) Any large outdoor light used to illuminate a public area, usually urban.(uncountable) The light produced by these lights.词族派生词（1）streetlight effect