But somehow I got my days mixed up and didn't realize the mistake until now.
可是不知道怎么回事,我把日期弄错了,而且到现在才知道这个错误。
In 1953, a former electronics engineer in his fifties, Christopher Cockerell,who had turned to boat-building on the Norfolk Broads,
在1953年,有一位50多岁名叫克里斯托弗·科克雷尔的原电子工程师,改行在诺福克郡的湖泊地区从事造船业,