过目不忘
have a memory like an elephant.
a photographic memory.
eg:the boy has a memory like an elephant, he can tell you what happened in that period.
中英俚语俗语来源:晋书·苻融传:“持融下笔成章,耳闻则诵,过目不忘。”
反义词:丢三落四阳e a head like a sieve