实施手术的是一个名叫戴维斯的医生。
B：I've never heard of Dr Davis.
我从没听说过戴维斯医生。
perform /p??f??m/ v. 实施；履行；执行；表演
■ certain 用在此处表示“说得出姓名但不认识某人”，可译为“一个，有个，某个”。
经历手术后活下来 come through the operation
A：With such a weak heart she was lucky to come through the operation.
心脏这么衰弱，手术后她能活下来真是幸运。
B：Indeed she is a lucky dog.
她的确是个幸运儿。
weak /wi?k/ adj. 虚弱的
indeed /?n?di?d/ adv. 的确，确定；事实上
◆ come through 经历……仍活着
◆ lucky dog 幸运儿，幸运的人
在手术中死亡 die during an operation
A：He died of a heart attack during a routine operation.
