Peter ' s never stayed at anything long enough to become an expert . he ' s something of a jack of all trades 彼得做任何事情都不持久，因而也成不了行家能手，颇像个样样都会一点，但一样都不精通的人。
2.
Even the least net savvy people have trained themselves to ignore banner advertisements so you will be wasting valuable web site real estate 即使是最不精通的用户，也知道要关闭广告，所以你这样做是在浪费。
