1. But if you are a serious private investor, leave the Las Vegas mentality to those with money to fritter.
    但是，如果你是一个认真的私人投资者，就把拉斯韦加斯的心态留给那些有钱可供挥霍的人。

2. He is only a boy of average mentality.
    他只是个智力平常的男孩。