put one's A hat on困难

Like other start-up investors, Mr Arnold’s own business often depends on selling start-ups to larger tech companies, though he admits to mixed feelings about the result: “I think these things are good for me, if I put my selfish hat on.

和其他初创公司投资者一样，阿诺德先生自己的生意也常常依赖于把初创公司卖给更大的科技公司，不过他承认对这样的结果心情复杂：“如果从自私的角度看，我认为这些事情对我有好处。