He worked hard at training his eye and brain to tell the correct distance.
VOA: special.2009.03.18
Same distance, same eye chart, the only difference being they're sitting in a flight simulator and they were wearing pilot overalls.
相同的距离,相同的视力表,唯一的不同是,他们坐在,飞行模拟器里,穿着飞行服。
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