问题描述：
英语翻译
for a long time,the english were protected by the strong antibacterial agent in hops,which were add to make beer last,but in the late 17th century a tax was introduced on malt.
for a long time,the english were protected by the strong antibacterial agent in hops,which were add to make beer last,but in the late 17th century a tax was introduced on malt.
问题解答：
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