But Infrequent的意思|示意

This was an infrequent , but very possible case.

这是一种罕见，但很可能的情况。

An Indian, in his native garb, was standing there; but the red men were not so infrequent visitors of the English settlements.

一个身着土著装束的印第安人正站在那里，但在这块英国殖民地中，红种人并非鲜见。

These events will not be one-time only occurrences, but they will be infrequent.

这些事件并不会只发生一次，但是它们并不频繁。

The balanced geological section has been widely used for the analysis of orogenic belt, but it is infrequent for extensional basins.

挤压构造的平衡地质剖面分析已经广泛应用于造山带构造分析，但伸展构造区的平衡地质剖面分析实例仍然很少。

People often focus on the absence of visits at the highest levels, but those are infrequent in any relationship.

人们常注重于没有最高层访问，但这类访问在任何关系中都并非频繁。

Should you write infrequent but long posts, or frequent but pithy ones, or something in between?

你必须写罕见的但是很长，或者常见的但是精炼，或者其他介于这两者之间的文章吗？