The plural 's' is not a free form, as it must always be attached to a noun.

表示复数的s不是自由语素，必须附着于名词。

You can put them on your desk or clip them to your monitor. They can be attached to your dashboard in your car.

你可以把它们放在你的桌子上或夹在你的显示器上。它们可以安装在你车里的仪表盘上。

Exception events can only be attached to an activity.

异常事件只能附加到某个活动。

A change summary may be attached to any DataObjectType.

更改摘要可以附加到任何数据对象类型。

A volume can only be attached to one EC2 instance at a time.

一个卷只能同时附属于一个EC2实例。