achievement - something very good and difficult that you have succeeded in doing, choice - an act or the possibility of choosing, convinced - when someone is certain about something, develop - to (cause something to) grow or change into a more advanced, larger, or stronger form, friendship - friendship, harmful - physical or other injury or damage, help out - you do a part of someone's work or give someone money, improvement - an occasion when something gets better or when you make it better, membership - the state of belonging to an organization, occasional - not happening or done often or regularly, opportunity - an occasion or situation that makes it possible to do something that you want to do or have to do, or the possibility of doing something, persuade - to make someone do or believe something by giving them a good reason to do it or by talking to that person and making them believe it, purchase - something that you buy, socialize - to spend time when you are not working with friends or with other people in order to enjoy yourself, trust - to believe that someone is good and honest and will not harm you, or that something is safe and reliable,

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