To this end, manufacturers of these products constantly add new features.

The development team has constantly added features and improved the existing ones, since then.

More than 570 different species of birds have been identified in the reserve, some for the first time, and the list is constantly added to.

The web site is constantly adding new features and expanding content.

So, are they constantly adding new stuff or what?

"I'm constantly adding names on ones I've done before," she added.

It's a development version and new features are being added constantly, although it is fully usable.

He also bought her an elaborate tool chest, and he's constantly adding to it.

Younger wines are constantly added to the barrels as old wine is drawn off.

We have proven that it is far better to keep to the guidelines and ensure they are applied than to constantly add new elements.