This results suggest that there is a biosynthetic cost to constantly producing a high level of defensive chemicals.

The judges feel Kirsty is constantly producing only amateur photos.

Are these machines ever idle or are they constantly producing something - and what is that something?

Dark fermentation reactions do not require light energy, so they are capable of constantly producing hydrogen from organic compounds throughout the day and night.

Our bodies are constantly producing sweat, but there are certain times when they produce a lot more.

Scientists say it is impossible to assure absolute safety, especially since earthquakes differ and seem to constantly produce surprises.

The group constantly produces a series of cheeping or churring calls.

For the next two years fear of getting pregnant was constantly producing panic, misery and confusion.

I believe it is high time we faced up to reality, instead of constantly producing more and more waste.

Just as people want to see new episodes of a television series, politics needs to constantly produce new themes.