blacking
['blækɪŋ]
n.
黑色鞋油，黑色涂料;
v.
弄脏( black的现在分词 );
使变黑;
抵制;
把黑油彩抹在（演员）脸上;
例句:
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Some Welsh activists have started blacking out English language road signs.
一些威尔士激进分子已经开始涂盖英语路标。
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U.S. government specialists went through each page, blacking out any information a foreign intelligence expert could use.
美国政府的专家们审查了每一页内容，涂掉了外国情报专家可能利用的任何信息。
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Darkness was blacking out both sea and jungle.
暮霭渐渐掩蔽了海洋和丛林.
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One thinks instantly of Dickens, and of his toils in the blacking factory.
来自NEWYORKER
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His job was to put labels on pots of 'blacking', used to clean fireplaces.
来自BBC
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Charles was sent to work in Warren's blacking factory and endured appalling conditions as well as loneliness and despair.
来自BBC