know full well - to know something without a doubt, underestimate - to think that something is cheaper, easier etc than it really is, enigmatic - mysterious and difficult to understand, open up to - to stop being shy and say what you really think, insane - maddening or extremely annoying, spin-off - a film or book etc that is based on an earlier one, backup - extra help or support that can be used if it is needed, outbreak - when something bad such as a serious disease or a war starts, inability - the fact of being unable to do something, prove someone wrong - to do something to show someone that they are mistaken about something, pushover - to be easy to do or win, far-fetched - extremely unlikely to be true or to happen, to cut straight ti the case - to get to the point without wasting time, forge ahead with - to suddenly made a lot of progress with something, reckless - not carrying or worrying about the possible bad or dangerous results of your actions,

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