playbackWiktionary 原文中文来自 ECDICTn.(录音)重放，(录音)重放装置构词拆分play词根/词干+back词根/词干演变路径（由近及远）英语借自 ←法语 playback词源说明From play + back. Sense 2 is from French playback, a pseudo-anglicism of this term.释义（英文）名词 NounThe replaying of something previously recorded, especially sound or moving images.(nonstandard, non-native speakers' English) Lip-syncing.词族派生词（1）playback singer