Objective To observe the effect of full thickness lamellar keratoplasty combined with PTK ( photo therapeutic keratectomy ) .目的探讨联合 PTK 的全厚植片深板层角膜移植术的疗效....
Whenever I have a cold I get a nosebleed.每次我感冒都会流鼻血。A nosebleed is an issue of blood from the nose.鼻衄就是鼻孔流血的结果.I always end up sitting in the nosebleed section.我老是落得坐到最烂的位子....
People are leaving an agrarian way of life to go to the city.人们正在放弃农业生活方式而转向城市....a rich area with a highly developed agrarian economy.农耕经济高度发达的富饶地区The centre of the U.S. economy shifted from the agrarian areas to the in...
The mystery hero immediately alerted police after spotting a bomb.那个无名英雄发现炸弹后马上报了警。The boss alerted him that thief might come out at night.老板要他提防夜里可能有贼。The 23-year-old's screams alerted a passerby who went to her re...