1. 公共查询·英语单词

1. I''m only here as a fill-in while she''s away.
    她外出期间，我是替工。

1. someone who takes the place of another (as when things get dangerous or difficult)

    e.g. the star had a stand-in for dangerous scenes
           we need extra employees for summer fill-ins

    Synonym: stand-insubstitutereliefrelieverbackupbackup man