But they don't typically give feedback based on the syntax or grammaticality of what they say.

但他们通常不会根据儿童所说话语的语法,或者是否符合语法,来给予反馈

耶鲁公开课 - 心理学导论课程节选

And in some recordings Frost then says, "... or somebody'll provide for ya."

弗罗斯特的一些记录里说，“,或者一些人会给予你什么，“

耶鲁公开课 - 现代诗歌课程节选

And fixed versus variable speaks to whether you give a reward on a fixed schedule, every fifth time, or variable, sometimes on the third time, sometimes on the seventh time, and so on.

固定与变化则是相对于,你是否根据固定时程给予奖励而言的，每五次就给予奖励，或者是变化的，有时候在第三次上给予奖励，有时候则在第七次上给予奖励。

耶鲁公开课 - 心理学导论课程节选