David gave us a vivid of his trip to Mount Huangshan after his return.
A. account
B. explanation
C. imagination
D. idea
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(答案→)A. account
B. explanation
C. imagination
D. idea
解析：词义辨析。A. 解释；账目 B.说明；辩解；解释 C.想象 D.主意；想法。句意：戴维德在回来后向我们生动的解释了他到黄山的旅行。根据语境可知选A，像报账一般说明他的旅行，故选A。