once every 每年一次?

once every 每年一次? once every other day 隔一天一次 这句话里哪有隔的意思啊? 一年一次是every a year还是once a year 为啥? Bus No.5 runs every ten minutes 还是选once ten minutes我们之前不是学过一周一次可以说 once a week吗 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 every和once的用法区别奥运会四年举办一次是：The Olympic games are held every four years.但是能不能说：The Olympic games are held once four years.有没有什么特定的规则呢? once every 5 minutes in 3 months ,it should be once every 5 minutes for 3 months 的区别这是质量文件中,对产品的检测频率的翻译的问题,对方要求在三个月内每5分钟检测一次,我填写的是 once every 5 minutes in 3 每年一次艺术节 英语怎么说 每年检测一次,英语怎么说 每年维修一次 英语怎么说? the earth turns _____itself once every day. every day once 辛苦你们了! once every other week 的意思! once every other mouth求翻译 有首歌叫什么day~once more其中有什么every every~ 英语翻译Every class has its _____ class _____.你又错过了一次绝好的机会You miss a good chance once _____ BE HELD EVERY 4 YEARS be held once for four years每四年举办一次以上说法哪个更准确 帮我翻译一个句子,Thank you!他们每年都在美国举行一次汉语演讲比赛.They _____ a _____ _____ _____in the USA every year.