If you describe memories and descriptions as vivid, you mean that they are very clear and detailed.
People of my generation who lived through World War II have vivid memories of confusion and incompetence.
我们这一代经历过二战的人都还真切地记得当时的迷惘和无助。
The play is a vivid portrait of black America in 1969.
这出戏生动刻画了1969年美国黑人的生活。
The poems are full of vivid imagery.
诗里充满了丰富多彩的意象。
Something that is vivid is very bright in colour.
a vivid blue sky.
碧蓝的天空。