精通系统扫描入库，出库，回冲知识；
Master system scanning storage, warehousing, return knowledge.
恰好及时地冲回他记得的树干。
他看到水里的血，然后冲回岸边。
每一个波浪都把他推倒，而且海流不断把他冲回海中去。
Each wave threw him down and the current kept pulling him back into the sea.
每一个波浪都把他推倒，而且海流不断把他冲回海中去。
Each wave threw him down and the current kept pulling him back into the sea.
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