he eats hamburgers 2 times a week,这句话中,为什么hamburger 加了 s 在何情

he eats hamburgers 2 times a week,这句话中,为什么hamburger 加了 s 在何情 初一英语问题!Does he like hamburgers for lunch?这个句子中hamburger为什么要加 I likes hamburgers中为什么hamburger中要加s? He eats noodles three times a week.对three times a week提问 how many times a week?time为什么要加s? so he must stay in bed for a week.句中stay为什么不加s hamburger 为什么在英语的句子里要写成hamburgers he eats a hamburger for lunch 对 lunch进行提问 He eats in the classrooms为什么翻译中eat不加s 这句话中为什么加个times?在句中起着什么作用I have three times as many as you. she always eats her lunch at noon这句话为什么不是eats lunch反而中间加了her a man eats an apple eat为什么要加s