The squad leader sucks from a tube inside his helmet that connects to a water pack hanging from his back.

班长用头盔内的吸管吸了几口水，这根管子与悬挂在他背上的水袋相连接。

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The squad leader sucks from a tube inside his helmet that connects to a water pack hanging from his back.

班长用头盔内的吸管吸了几口水，这根管子与悬挂在他背上的水袋相连接。

youdao