They are patrol boats, mine - layers , mine - sweepers and so on.

有巡逻艇、布雷舰 、 扫雷舰 、等等.

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The sweepers were training the brooms along the street.

清洁工们正沿着这条街道清扫.

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I was one of those sweepers myself.

我本人就曾经是打扫人之一.

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Road sweepers waiting for the flag raising to end, so to clean up the gathering area.

扫地的大叔排排站, 等升旗仪式结束后去打扫刚刚游客驻足观看的地点.

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