Today the word is most commonly used in the sense of deep infatuation, where going gaga for something is the same thing at "mooning over" it. Example ：

The mask is made of a stretchy fabric that is commonly used in bathing suits, and comes in different colors and patterns.

这种面具所使用的材料是用来做泳装的那种有弹性的织物，有各种颜色和图案。

The team only analysed their samples for the three most commonly used packaging plastics.

这个团队只对他们采集样品中最常见的三种包装塑料进行了分析。

To read a line graph, it's important to focus on the points of intersection rather than the line segments between the points, This type of graph is most commonly used to show how something changes over time.

阅读线图时应强调把重点放在交点而不是点与点之间的线段上。这种类型的图最常用来表示事物随时间发生的变化。

The graph is commonly used to show percentages; the whole pie represents l00 percent, so each piece is a fraction of the whole.

图形通常用于显示百分比；整个饼图表示100%,因此每一块都是整个饼图的一小部分。

'Register' is the term commonly used to describe different levels of formality in language.

“语域”是一个术语，通常用以描述语言中用语的正式程度。

Words and phrases including dogs ( Gou in Chinese) are commonly used by young people when telling jokes about themselves.

含有“狗”字的词汇和习语是年轻人讲笑话时常用的。

The company's silence on the subject has been taken as an admission of guilt.

在外界看来，公司在这个问题上保持沉默便是承认有罪。

These proposals are perfectly in tune with our own thoughts on the subject.

这些建议与我们在这个问题上的想法完全一致。

Focus the camera on the subject.

把相机的焦距调到被拍对象上。

Everyone had an opinion on the subject.

大家对这个问题都有自己的看法。

His views on the subject were well known.

他对这个问题的看法众所周知。

I'm doing some research on the subject.

我正就这一课题进行研究。

Roughly speaking, we receive about fifty letters a week on the subject.

关于这个问题，粗略地说，我们每周能收到大约五十封来信。

As an alpha release, it is also subject to change.

作为一个alpha版本，它依然在不断变化之中。

These materials are subject to change without notice.

这些材料如有更改，恕不另行通知。

The design and specification of machine are subject to change without notice.

本公司专有对机床设计及参数更改权利，更改恕不另行通知。

Specifications are subject to change without notice for further improvement.

以上规格若有变更恕不另行通知。

Prices may be subject to change on public holidays.

以上价目于公众假期或会作出更改。

Used of values and principles; not subject to change; steady.

用来指价值或者原则；不容易改变；稳定的。

All train times are subject to change in bad weather conditions.

在恶劣的天气状况下，所有列车时刻都常有变动。