So while. And thankfully the jargon that the authors of this language chose early on conjures up the right ideas in your mind while something is true.

即while语句，幸好该语言的创始人,选择的术语都很通俗易懂,让人只通过字面意思就能联想到其真正含义。

哈佛公开课 - 计算机科学课程节选