小明老爱问为什么老爱打破沙锅问到底的英文

xiaoming always asks why and he'll never be satisfied until he knows everything

• 小:    small; little; pet ...
• 明:    bright; brilliant; ...
• 老:    I aged
• 爱:    love
• 问:    ask; inquire
• 为什么:    why; why is it tha ...
• 打破沙锅问到底:    insist on getting ...