流水: running water, (business) turnover...
节能: to save energy, energy-saving...
乌云: black cloud...
撤换: to dismiss and replace (sb), to replace (sb or sth)...
催促: to urge...
阻止: to prevent, to block...
翻译: to translate, to interpret, translator, interpreter, translation, interpretation...
公认: publicly known (to be), accepted (as)...
预售: advance sale, to sell in advance, to book...
烦恼: to be worried, to be distressed, worries...
