点击下方单词,选择对的这个单词
1. 害人反害己；自食其果If someone who has planned to harm someone else is hoist with their own petard or hoist by their own petard, their plan in fact results in harm to themselves.
1. an explosive device used to break down a gate or wall
多通过句子记忆单词，而不是单独死记硬背。
