The rescue services did the last sweep to try and find the missing boy.

救援队展开最后一次大面积搜索,设法找到失踪的男孩.

《简明英汉词典》

The thief posed as a chimney sweep to enter the house.

小偷装成烟囱清扫工人进了房子.

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Before spud, adjust the viscosity of bentonite sweep to over 80 seconds by adding Lime.

一开前, 用石灰将般土浆粘度调至80秒以上.

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