be on to

• • 了解…的情况；看透…的意图
  • 查明
  • 跟…接触(或联系)
  • 找…的岔子
  • [口语]
  • 了解某人的情况(或心事)：

    She is on to me.

    她很了解我。

  • 抱怨，埋怨，怨恨：

    She was on to him about that matter.

    她因那件事而埋怨他。

  • 朝…方向：

    Our ship is on to the wharf.

    我们的船靠向码头。