一个星期两次英语

twice a week or three times a week or four times a week

twice a week希望能帮到你，祝更上一层楼O(∩_∩)O有不明白的请继续追问(*^__^*)

twice a week.twice易为两次，一次用once.一般大于三次才用times

twice a week 2次three times a week 3次four times a week 4次n times a week n次

onceaweek:一周一次;twiceaweek:一周两次.

once a week twice a week three times a week four times a week once a mouth up to three times a mouth most of students none of students three or four times a week