Many smoking parents purchased expensive air filters that have what Cabana called "questionable utility.

很多抽烟的家长不惜花大价钱购买被卡巴娜称为“值得怀疑的器具”的空气过滤器。

youdao

Indexes on the foreign keys referencing tables with few rows have low selectivity, and the utility of requiring the index has always been questionable.

外键上的索引所引用的表行数较少，选择性较少，需要索引的实用程序一直遭受质疑。

youdao

Gmote offers more features, but we felt it's utility for video was a little questionable.

Gmote提供了更多的功能，但我们觉得它的视频功能还存在问题。

youdao

This leaves Republican governors arguing for a new, costly government programme of questionable utility in straitened fiscal times.

ECONOMIST: Election laws

Lehman's bankruptcy and AIG's failure suggest Wall Street has too much leverage and too much capital devoted to products of questionable economic utility.

ECONOMIST: Saving Wall Street

It's always had questionable legality from the beginning, but its utility and ease is not a question.

NPR: Steinski Gives A Sampling History Lesson