Tap water filters trickled down from NASA's need to cleanse water on long space flights.
非蒸馏水净化器是NASA考虑到长途太空飞行中对水的净化的需要而开发的.
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Beads of perspiration burst forth among his hair and trickled down upon his temples.
一滴滴汗珠从他头发里流出来,直流到鬓边.
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Tears trickled from the corners of her eyes, and she knuckled them away quickly.
眼泪顺着她的眼角流下来, 她快速地用指关节把眼泪擦去.
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