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。
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。
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。
You can also use import to introduce other non-constant members as well. For example, consider a math utility library (of questionable value perhaps, but still...) in Listing 6.
也可以使用import来引入其他非常量的成员。
You can also use import to introduce other non-constant members as well. For example, consider a math utility library (of questionable value perhaps, but still...) in Listing 6.
也可以使用import来引入其他非常量的成员。
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