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来源:雅诚德英语网
A few blind people have mastered echolocation in order to sense their surroundings.
有些盲人已经掌握了通过超声定位来感知周围环境的技能。
A few blind people have mastered echolocation in order to sense their surroundings.
有些盲人已经掌握了通过超声定位来感知周围环境的技能。