fasten down

• • 扣住，钉上，扎紧，使固定：

    The lid of this box has been fastened down.

    这箱子的盖子已被钉上。

  • 确定(意义等)：

    to fasten down the sense of a term

    确定某一术语的意义

  • [口语]使做出决定：

    Can you fasten him down to a firm date?

    你能使他确定一个确切日期吗?