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universal step /jˌuːnɪvˈɜːsəl ˈstɛp/ n

中文：客梯车

中文 · 客梯车Español · escalerilla rodanteFrançais · escalier d’accès
Meaning：Mobile staircase that is positioned manually at an aircraft door to allow passengers to enter or exit. stairs
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Found in these illustrated scenes（1）

Airport ground equipment

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