retractable

柯林斯詞典

retractable /r??tr?kt?b?l/

• 1. ADJ A retractable part of a machine or a building can be moved inward or backward. 可縮進(jìn)的; 伸縮自如的[usu ADJ n]

  A 20,000-seat arena with a retractable roof is planned. 一個可容納2萬名觀眾、帶伸縮頂棚的競技場正在規(guī)劃中。

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