溃疡已经折磨她好几年了。The ulcer had been troubling her for several years.“那是因为我得了溃疡，”他补充解释说。"It's my ulcer," he added by way of explanation.一种细菌被断定为造成他十二指肠溃疡的根源.A bacterium is identified as the cause for his duodenal ulcer....
眼科医生现在采用激光手术来矫正近视。Ophthalmic surgeons are now performing laser surgery to correct myopia.女孩眯起眼睛看照片。她好像近视。The girl squinted at the photograph. She seemed to be nearsighted.检查表明她近视得很厉害。Testing showed her to be very short-s...