您要查找的是不是：
- He came every three days. 他每三天来一次。
- He comes to see us every three days. 他每隔三天来看我们一次。
- He comes to see his parents every three days. 他每隔三天来看他的父母一次。
- He comes here every three days (every third day). 他每三天(每隔两天)来这儿一次。
- He comes here every three days. 他每隔两天来这里一次。
- It was all of three days,before he came to consciousness. 至少过了三天，他才苏醒过来。
- He comes to see us every three days 他每隔三天来看我们一次。
- "Does he come every day?""He does (so). ”“他每天都来吗?”“他每天都来。”
- It was all of three days, before he came to consciousness. 至少过了三天，他才苏醒过来。
- Debbie phones her mother every three days. 黛比每隔两天给她母亲打次电话。
- The truck runs every three days. 卡车每隔两天开一次。
- We hand in our homework every three days. 我们每三天/每隔两天交一次作业。
- The tuition bills came every three months, they were on the payment plan. 学费单据每三个月就会寄来，是上了缴费计划的。
- You can water the flowers every three days. 你可以每三天给花浇一次水。
- I have to see my dentist every three days. 我每隔三天就要去看一次牙医。
- I help him to clean his room every three days. 每两三天我都要帮他打扫房间。他的房间经常是既脏又乱。
- Her daughter comes to see her every three days. 她女儿每三天来看她一次。
- Each pine log must be replaced every three days. 每根松木支架都必须每三天更换一次。
- The LSST will cover the sky every three days. 而这台还在酝酿中的史上最牛望远镜，每三天就可以把整个天空扫一遍。
- I was paging through a magazine when he came in. 他进来时我在翻阅一本杂志。
