According to your father, Einstein stood there for a long time after hearing the answer, watching the boy's mechanical movements, not even bothering to smoke his pipe as the embers went out.

据你父亲说， 爱因斯坦在听到答案后站在那里很久，看着男孩机械的动作，甚至在余烬熄灭时也懒得抽烟斗。