abandon: If you abandon a place thing or person, you leave the place thing or person permanently or for a long time, especially when you should not do so.
举例：He claimed that his parents had abandoned him.
abandon: If you abandon ann activity or piece of work. You stop doing it before it is finished
举例：The authorities have abandoned any attempt to distribute food
abandon: If you abandon an idea or way of thinking, you stop having that idea or thinking in that way.
举例：Logic had prevailed and he had abandoned the idea
abandon： If you say that someone does something with abandon, you mean that they behave in a wild, uncontrolled way and do not think or care about how they should behave
举例： He has spent money with the gay abandon
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