大家在查： cry out puerarin Feely 38% last yoking 苎 -400A 失重大 wisecracking 苯环喹

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1

The heaters have water-filled steel tubes that zigzag in front of a reflective surface , which concentrates the sun 's rays on the tubes .

这种加热器装有充满水的管子，在反射面前头曲折布置，反射面将太阳光聚焦在管子上。

2

She stood shyly before him , her eyes cast down.

她羞答答地站在他面前，头也不敢抬，眼睛注视着地面。

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