演到一半英语怎么说

“演到一半”的英文表达是 "in the middle of a performance"。来源是指表演当时正在进行中，而演到一半了。这个表达主要是用来描述表演过程中的情况，例如演出、演讲或其他形式的表演。
一些例句及其中文翻译如下：
- "The singer was in the middle of a performance when the power went out."（歌手正在表演时停电了。）
- "The speaker was in the middle of a presentation when she was interrupted by a question from the audience."（演讲者正在进行演讲，突然被观众的提问打断。）
- "The actor was in the middle of a monologue when she realized she had forgotten her lines."（演员正在独白，突然发现她忘了台词。）
总之，“演到一半”的英文表达是 "in the middle of a performance"，指表演当时正在进行中，而演到一半了。