Billionaires are usually fairly secretive about the exact amount that they're worth.亿万富翁通常对自己身家的确切数目讳莫如深。Maybe we should take a leaf out of Branson's book. It's easy to see how he became a billionaire.也许我们应该学学布兰森，大家都不难看出他是如何成为亿万富翁的。Some of the billionaire's children disincline to work.那个亿万富翁的儿女中有几个不愿意工作。