simultaneously 是一个副词，核心含义为“同时地”，用于描述两个或多个动作、事件在同一时间发生。其发音有英美差异：英音为 [ˌsɪməlˈteɪnɪəsli]，美音为 [saɪməlˈtenɪəslɪ]，由形容词“simultaneous”加副词后缀“-ly”构成，强调动作的同步性。

用法解析

句法位置

句首：强调多个事件的同步性，如 “Simultaneously, the company expanded its business and improved its products.”（公司同时拓展业务并改进产品）。

句中：置于动词前修饰动作，如 “The team members worked on the project simultaneously.”（团队成员同步推进项目）。

句尾：补充说明动作的同时性，如 “She sang and danced simultaneously.”（她载歌载舞）。

常见搭配

与动词连用：execute multiple programs simultaneously（同时运行多个程序）、broadcast simultaneously on TV and radio（电视与广播同步直播）。

与介词短语搭配：simultaneously in several channels（同时在多个渠道）。

同义词与场景
同义词包括 concurrently（同步地）、at the same time（同时），反义词有 separately（分别地）、in succession（依次地）。其应用场景广泛：

科技领域：多设备同步处理数据，如 “sensors simultaneously collect environmental data”（传感器同时采集环境数据）。

日常场景：描述并行活动，如 “surf the Web and chat via IM simultaneously”（同时上网和聊天）。

例句

两支枪几乎同时开火。The two guns fired almost simultaneously.

Windows允许用户同时运行多个程序。Windows allows a computer user to execute multiple programs simultaneously.

比赛将同时在电视和广播中转播。The game will be broadcast simultaneously on TV and radio.

数千人周四晚在马德里月亮广场同时接吻。Thousands of people kissed simultaneously in the Plaza de la Luna of downtown Madrid.

媒体在赞美单身生活的同时，常常嘲讽一夫一妻制关系。The media has glorified the single life, whilst often simultaneously mocking monogamous relationships.

该设备支持多任务处理，例如同时浏览网页和即时通讯。The device permits multitasking, letting you simultaneously surf the Web and chat via IM.

熔炉中2000吨熔融玻璃同时进行熔化、精炼和均质化。Several processes—melting, refining, homogenising—take place simultaneously in the molten glass.

弱侧化的雏鸟难以同时完成两项活动。Weakly-lateralised chicks had difficulty performing these two activities simultaneously.

人文学科变得比以往任何时候都更重要。Simultaneously, the liberal arts become more important than ever.

两个沙哑的声音在寂静的夜晚同时说出那个可怕的词：“血！” Two hoarse whispers delivered the same awful word simultaneously to the brooding night: "Blood!"

记忆提示：通过“simultaneous（同时的）+ ly”掌握词性变化，结合“多任务处理”“同步直播”等场景强化理解。使用时需确保描述的动作确实可并行发生，避免逻辑矛盾。你是否在科技产品说明书或新闻报道中见过这个词？留意它如何体现“高效同步”的