call on

短语
大学

[计] 访问

发音

AU

词形变化

calls on 三单 calling on 现在分词 called on 过去式 called on 过去分词

别名

call upon

释义与例句

v.
  1. 1.

    To visit (a person); to pay a call to.

    习语 及物

    I really should call on my aunt more often.

  2. 2.

    To select (a student in a classroom, etc.) to provide an answer.

    习语 及物

    He sat there, baffled, hoping nobody would call on him.

  3. 3.

    To request or ask something of (a person); to select for a task.

    习语 及物

    The king called on his subjects to take up arms and defend the kingdom.

    The alma mater had again called on her sons in her hour of need and again they had responded.

    De Gaulle called on the military to break with their hierarchical superiors and on the other French citizens to distance themselves from their government.

  4. 4.

    To have recourse to.

    习语 及物

    Exhausted, he called on his last ounce of strength.

    The young adventurer set out on the new planet alone, thankful that she could still call on her captain for advice in case of emergency.

  5. 5.

    To correct; to point out an error or untruth.

    双及物 习语 及物

    The salesman persisted in quoting a rate higher than was listed, until we called him on it.

词汇关系