每隔两天
... every second day 每隔一天,每两天 every third day 每隔两天,每三天 every fourth day 每隔三天,每四天 ...
每隔一天
... every other day 每隔一天[两天] every third day 每隔一天[两天] Fair and softly go far in a day. [谚]从容稳重, 无往不胜。 ...
每三天
... every now and then 不时地,常常 every third day 每三天 four times 四次 ...