Two blind subjects used clicks and their echoes to distinguish objects like a car, tree or flag pole.

两名盲人受试者通过敲击和听其回声来辨别诸如汽车、树或棋杆等物件。

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In that test, the Volt was subjected to a simulated side-impact collision into a narrow object like a tree or pole followed by a rollover, the agency said.

而代理的工作人员解释说，上周的测试中，同样是进行模拟侧面冲击，撞上细长物体例如树或是电线杆之后翻车。

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Then they cut a tall tree for a pole and stood it upright.

接着他们砍一棵高树作为撑杆再把它直立的站着。

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