（50）白求恩停住步，茫然地问：“他自学成了一个医生？”于部长点点头：“是的，完全靠艰苦的摸索，看人家动手术，然后学着做。为了能跟你多学点东西，他现在又在努力学英文。”

(50) Bethune stopped in his tracks and asked in disbelief: “He taught himself to become a doctor?” Minister Yu nodded: “Yes, entirely through hard work and trial and error—watching others perform surgeries and then learning to do them himself. To learn more from you, he’s now putting in extra effort to learn English.”