The vast majority of bacteria do not cause disease, and many bacteria are actually helpful and even necessary for good health. These bacteria are sometimes referred to as âgood bacteriaâ or âhealthy bacteria.â. Harmful bacteria that cause bacterial infections and disease are called pathogenic bacteria.
catch-up noun [U]. âº the âprocess of âtrying to âreach the same âstandard or âquality as someone or something else when they have become more âadvanced or âsuccessful: I'm playing catch-up because of the weeks of âtraining I have missed.(Definition of catch up from the Cambridge Business English Dictionary Â© Cambridge University Press). the âprocess of âtrying to âreach the same âstandard or âquality as someone or something else when they have become more âadvanced or âsuccessful: I'm playing catch-up because of the weeks of âtraining I have missed. (Definition of catch up from the Cambridge Business English Dictionary Â© Cambridge University Press).
Think of it as shorthand for This is where we left and went off to do other things. When we return, we will pick up at this point.. (And pick it back up is often used in conjunction with left off, as in We'll pick back up where we left off tomorrow,). In other words, it is a marker that indicates the point at which activity was paused, with the intent that activity will resume at that place later.hen we return, we will pick up at this point. . (And pick it back up is often used in conjunction with left off, as in We'll pick back up where we left off tomorrow,).