They develop complex scientific equipment to explore the reaches of outer space and the depths of the oceans.

他们研发复杂的科学设备，用来探索未知的外太空和深海世界。

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They develop complex scientific equipment to explore the reaches of outer space and the depths of the oceans.

他们研发复杂的科学设备，用来探索未知的外太空和深海世界。

youdao