exacerbate

【原文】
In 2010, the company said it would open 20 stores in Moscow, after exiting Russia in 1999 following three years of losses exacerbated by a rogue franchisee who sold liquor and meat pies alongside coffee and crullers.

【単語の意味（英語）】
to make something worse, especially a disease or problem

【単語の意味（日本語）】
～を悪化させる

【その他の単語】
rogue いたずらっ子；悪漢