a downward trend - a general tendency for something to decrease, reverse the trend - to make something start to change back, a tipping point - the moment when one particular result of a process becomes the most likely one, after a period when the result is not sure, look set to continue - to seem likely not to stop, pass a milestone - to go past a very important event in the development of something, mark the start of a new era - to be a sign of an important change, be on the up - to be improving or increasing, revert to something - to change back to a situation that existed in the past, set the trend - to start doing something that other people copy, look promising - to show signs of being successful or good in the future,

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