hold once a year什么意思书上说是每年过一次,那么hold又是那的意思,什么跟什么? 解释一下吧

hold once a year什么意思书上说是每年过一次,那么hold又是那的意思,什么跟什么? 解释一下吧 Hold a什么意思 they hold a sports meeting in their school once a year改被动语态 hold a penny什么意思 once a year in Japan和in Japan once a year有什么区别么? Every term we have tests in these events and once a year we hold a sports meeting.tour once a year啊,once是什么词性, once a year因该用什么提问 once half year,twice a year 用once a year造句 hold up a sign什么意思 How often＿your school sports meeting＿?Once a year.A.dose,hold B.was,hold C.is,held D.did,hold求答案并带具体解析. once in a while ?什么意思? A Festival for the Dead is held once a year in Japan.中的is held中含的语法,为什么用hold的过去式 hold on什么意思? on hold 什么意思 hold住什么意思 hold姐什么意思