Backfired
v. （内燃机等）发生逆火( backfire的过去式和过去分词 ); 发生回火; （枪炮）向后爆发; 发生意外
🗣️ 情景例句
You are a walking dictionary.
你是活字典。
I lift weights all day long. I can't think but that I'm healthy.
我一整天都在举重，健康至上嘛。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。