研究报告在今年早些时候告诉了参加试验的人中谁患了直肠癌。
Research reported earlier this year told about people who had colorectal cancer.
通过对自愿参加试验的人们使用塑料模具临时改变他们耳廓的形状，荷兰的研究人员发现，这些参加试验人们确实难以确定声音的来源。
By temporarily altering the shape of the pinnas with plastic molds, researchers in the Netherlands found that indeed, people with new pinnas had a hard time locating sound sources.
如果那还不是充分动机的话，他说，他的小外甥女和与她同年龄的人给了他参加试验的动力。
And if that is not enough motivation, he said his young niece and others in her age group also inspired him to become a participant in the trials.
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