leader n.  one who leads

    hip-shooter n.  a person who acts rashly 鲁莽行事者

    conservative a.  favoring traditional values； tending to be against change

    satisfy vi. free from doubt or uncertainty， convince

    hunch n.  a feeling about what is going to happen 预感

    guarantee vt. make certain； promise

    projection n.  an estimate of what will happen； forecast made on past performance 估计；预测

    leap n.  a sudden jump