不常

Disturbances are relatively infrequent in British prisons.

相对来说，英国监狱不发生骚乱。

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

她最近不在园子里干活——她很容易疲劳。

He doesn't swim much.

不游。

His familiarity with many rarely used languages surprised us all.

"晓多种不使用的外国语,这使我们大家感到惊讶。"

I don't often lunch out.

我不在外面吃午饭。

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

我不使用木材，假使要用且能找到，我爱型的。

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

为了到达不宜的出产效果，不拔取众激平束并行纪录的技艺，其平源本钱相差较矮。