求翻譯：The splendour of natural history hit The Blue Planet is matched by the wit of the script and stars. Barry Humphries has a terrific cameo as a great white shark who's sworn off killing (Remember, fish are friends, not food!), while DeGeneres provides perfect timing and tone as Dory, whose short-term memory loss is a gag是什么意思？

待解決 懸賞分：1 - 離問題結(jié)束還有