不常

Disturbances are relatively infrequent in British prisons.

相对来说，英国监狱发生骚乱。

She doesn't garden very much nowadays—she tires easily.

她在园子里干活——她很容易疲劳。

He doesn't swim much.

他游泳。

His familiarity with many rarely used languages surprised us all.

"他通晓多种使用的外国语,这使我们大家感到惊讶。"

I don't often lunch out.

我在外面吃午饭。

I do not use many woods, but when I do I prefer burled types if they are available.

我使用木材，假使要用且能找到，我爱好根瘤型的。

In order to achieve optimum productivity, often polybromide laser beam parallel record technology, its light source cost relatively expensive.

为了到达宜的出产效果，拔取束并行纪录的技艺，其源本钱相差较矮。