he watches tv twice a week 知道twice a week 是固定搭配,那么用once time

he watches tv twice a week 知道twice a week 是固定搭配,那么用once time he watches tv twice a week中文 Li Ming watches Tv once or twice a week he watches TV twice a week 为什么 twice a week 放在句末? My bother watches TV twice a week My brother watches TV twice a week 对twice 提问 My brother watches TV twice a week 对twice a week 提问 My bother watches TV twice a week.(对划线部分提问）划线部分是twice a week once a week和twice a week once a week twice a week. He watches TV twice a weekI shop once a month Sarah watches TV twice a week.(对画线部分提问)(划线单词:twice)