The word playback is a noun.单词回放是名词。

Meaning 1:意义 1：

• Playback means listening to or watching something that has been recorded, like music or a video.回放是指收听或观看已录制的内容，如音乐或视频。
• Another way to say it: It's when you play a recording to hear or see it again.另一种说法是：这是当你播放录音以再次听到或看到它的时候。

Example Sentences:示例句子：

1. The coach used the video playback to show the team their mistakes.教练使用视频回放向球队展示他们的错误。
2. I recorded the song and listened to the playback to check the quality.我录了这首歌并听了回放来检查音质。
3. The movie playback stopped because of a technical issue.电影播放因技术问题而停止。

When to Use:何时使用：

• When talking about reviewing a recording of sound or video.当谈论审查声音或视频的录音时。
• Often used in music, video production, or reviewing footage.常用于音乐、视频制作或审查素材。

Synonyms:同义词：

• Rewind, review, replay.倒带，回顾，重放。

Meaning 2:意义 2：

• Playback can also mean the act of replaying or showing something that happened earlier.回放也可以指重放或展示之前发生的事情。
• Another way to say it: Replaying events from the past, often for review.另一种说法：重放过去的事件，通常用于回顾。

Example Sentences:示例句子：

1. The player requested a playback of the controversial goal.球员要求回放有争议的进球。
2. Playback of the security footage helped solve the mystery.监控录像的回放有助于解开谜团。
3. The team studied the playback of their performance to improve.该团队研究了他们的表演回放以改进。

When to Use:何时使用：

• When referring to looking back at events, especially through recordings or replays.当提到回顾事件时，尤其是通过录像或重放。

Synonyms:同义词：

• Replay, review, rerun.重放，回顾，重播。