It's all right to borrow money occasionally, but don't let it become a habit.

偶尔借点钱倒没关系，但不要养成习惯。

《牛津词典》

Imagine a person who is about the right weight, but does not eat very nutritious foods, who feels OK but exercises only occasionally, who goes to work every day.

想象一个体重正常但不吃很有营养的食物的人，他感觉良好，只是偶尔锻炼，每天去上班。

youdao

Occasionally one can determine whether stone tools were used in the right hand or the left, and it is even possible to assess how far back this feature can be traced.

偶尔，人们可以确定石器是用在右手还是左手上，甚至可以评估这种特征可以追溯到多远以前。

youdao

But you do get some occasionally, right, in good times?

WHITEHOUSE: Fourchon Beach, Louisiana

Amid the hurly burly of Westminster, politics and recent events at the BBC, it is reassuring not just to see such courage on display but also to know that just occasionally the right thing is done.

BBC: Baroness makes a little bit of history

The nature of the threat may have changed but groups of various descriptions have been predicting a breakdown of society since biblical times -- and very occasionally they've been right.

CNN: Survivalists get ready for meltdown