infrequent

infrequent pulse 稀脈 ; 慢脈

infrequent a 稀少的

infrequent relapses 不常發

infrequent t 很少發生的 ; 稀有的

infrequent item 非正常項目

Infrequent Vacations 不經常休假

infrequent gas 罕見氣體

Not Infrequent 並不罕見

infrequent menstruation 月經稀少 ^[1] 

Muggings are relatively infrequent in this area.

在這個地區行兇搶劫事件相對少見。

Kids and teens who do read frequently, compared to infrequent readers, have more books in the home.

與不經常讀書的孩子相比，經常讀書的孩子和青少年的家裏有更多的書。

He moved on, aimlessly, and in a little while the houses thinned, and the passers-by were infrequent.

他漫無目的地繼續往前走，沒過多久，房屋漸漸變得稀少，過路的人也不多了。 ^[1]