when in uniform是省略形式吗?
母语人士的回答
Rebecca
when in uniform语法上是正确的,不需要遵循其他句子模式。 when可以将其理解为何when ( one is ) in uniform ,为了简洁起见,省略了括号中的内容。您会经常看到这种类型的语法,但可以将其视为when/while + at [place ]中的when/while +(- ing )或when/while + at [place 。例如: Please do not smoke while ( you are ) at work. (在工作中Do not talk on the phone while吸烟。)示例:( driving. you are ) Do not talk on the phone while driving. (开车时请勿讲话。)