回答几个问题。1. 有共同语言 speak the same language; 2. 好为人师的人 a know-it-all, a know-all；3. 倒霉 bad luck, 4. 躺枪 an innocent bystander caught in the crossfire; 5. 太过分了 you've gone too far. 6. 天上掉馅饼, windfall. 7. 大智若愚 Still water runs deep.
