Only about once a week.: 週に1回くらい
How do you stay so healthy?
どうやって健康を維持してるの?
well, I eat fresh fruit at least twice a day.
う~ん、最低1日2回は新鮮なフルーツを食べてるぞ
How about food like cake and chocolate?
ケーキやチョコみたいなのはどーう?
I eat that too, but only about once a week.
食べるけど、週に1回くらいだな
That’s pretty good. I don’t think I could do it.
凄い!僕には出来ないや!
once (a week):週に1回
twice (a month):月に2回
three times (a year):年に3回
every other day: 1日おき