i+1

释义与例句

n.
  1. 1.

    The existence of only one word unknown to the reader or listener of a sentence.

    不可数 语言学

    When enough comprehensible input is provided, i+1 is present.

adj.
  1. 1.

    Containing only a single word unknown to the listener or reader.

    语言学

    Our SRS provides automatic i+1 sentence cards for optimal study.

词源

Ostensibly coined by Stephen Krashen in his Explorations in Language Acquisition and Use in 2003; but possibly earlier. Originally, referred to a subsequent word (the 1) added to an existing vocabulary of i words, i.e. the i+1th word learned by the learner.

来源：wiktionary