Yes, this does happen on occasion.

是真的，这种情况偶有发生。

But it was a bit unnerving on occasions.

偶尔还是有点不舒服。

Dry on occasions because it's just so good.

有时候会干擦，因为它太棒了。

I'd say it's happened on occasion.

我会说这偶尔会发生。

On occasion the crew's maintenance duties will require a spacewalk.

有时，机组人员的维护工作需要进行太空行走工作。

On occasion, the two have sent soldiers on forays into one another's territory.

有时，两国还派士兵进入对方的领土。

He also drove Andre the Giant to school on occasion! True story.

他偶尔还会开车送巨人安德雷去学校 这是真的。

Of course, on occasion the meteoroid coming in can be a tad bigger.

当然，有时来飞的流星体可能会大一点。

This communication can, on occasion, be even more important than the actual words spoken.

这种沟通方式有时甚至比实际言语的沟通来得重要。

The reddleman was surprised to see how a slow fire could blaze on occasion.

红土贩子看到闷火有时会迸发出烈焰，吃了一惊。