shoot oneself in the foot 搬起石頭砸自己的腳

shoot oneself in the foot
繁：搬起石頭砸自己的腳
简：搬起石头砸自己的脚

中國駐英大使館表示，中英曾就BNO問題互換備忘錄，英方並在備忘錄承諾不為持有BNO的港人給予在英居留權，批評英國如今違背承諾。大使館說，香港事務屬中國內政，絕不容外國干涉，中方並敦促英國認清香港回歸中國的現實，停止干涉本港事務和中國內政，否則必然如「搬起石頭砸自己的腳」。

BNO港人可申留英特別簽證　中國駐英大使︰將作有力回應（2020年7月23日）。明報，取自https://news.mingpao.com/ins/港聞/article/20200723/s00001/1595468770199/

“The Chinese side urges the UK side to recognize the fact that Hong Kong is part of China, have a right and objective understanding on the National Security Law for Hong Kong, immediately correct its mistakes and stop interfering in Hong Kong affairs, which are China’s internal affairs,” an embassy spokesperson said in a statement posted on the embassy’s website. “Such interference will shoot itself in the foot.”

UK plan to offer citizenship to Hong Kongers draws China’s anger. (2020, July 23). Aljazeera. Retrieved from https://www.aljazeera.com/news/2020/07/uk-details-route-citizenship-hk-people-drawing-china-anger-200723010539525.html