Corona has contributed to the worsening of their business performance.
Corona has made their already difficult financial situation even worse.
ご質問ありがとうございます。
① "Corona has contributed to the worsening of their business performance."=「コロナはビジネスの業績悪化の一因となった。」
② "Corona has made their already difficult financial situation even worse."=「コロナは既に厳しい金銭的状況を更に悪化させた。」
ご参考に!
COVID-19 made their declining performance even worse.
こんにちは!
ご質問ありがとうございます。
ご質問について、いくつか言い方が考えられますが、例えば、
COVID-19 made their declining performance even worse.
とすると、「コロナが[業績悪化](https://eikaiwa.dmm.com/uknow/questions/88125/)にさらに追い討ちをかけた」となります。
役に立ちそうな単語とフレーズ
declining performance 業績の悪化
made even worse さらに悪化させる
COVID-19 impact コロナの影響
参考になれば幸いです。