我每月一次给我的笔友写信。

I write to my pen friend once a month.

youdao

那时我还没准备(那时可能已经卖掉了，但我当时太小了)，所以我每月一次循环和不同人联系。

I wasn't ready then (I would've sold then but I was too small) so I kept everyone in the loop with monthly updates.

youdao

每月一次专栏的压力让我时刻关注引起杂志的商业和专业读者兴趣的课题。

The pressure of having to do a column every month also makes me stay abreast of many subjects that interest the business and professional readers of the magazine.

youdao