once a week twice a week.一个星期四次怎么说?每个星期游四次泳怎么说?

once a week和twice a week once or twice a week 中文意思 once or twice a week 造句 The stadents exercise once or twice a week对once or twice提问 some sudents exercise once or twice a week Few students _____ homework once or twice a week Twice a week. Twice times a week. once,twice,thrice a week 能不能变成one time,two times ,three time a week once a week twice a week.一个星期四次怎么说?每个星期游四次泳怎么说? meet friend once a week,twice a week ,three times a week ,very often ,every day ,急哈! What comes once in a year,twice in a week and never in a day? what comes once in a year,twice in a week,never in a day? 4.What comes once in a year,twice in a week and never in a day? What comes once a year,twice a week and never a day? he watches tv twice a week 知道twice a week 是固定搭配,那么用once time a week对吗?语法上有错误吗 he watches tv twice a week 知道twice a week 是固定搭配,那么用once time a week语法上有什么错误吗 once/twice/three times a