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陈词滥调；枯燥冗长的陈述
If you describe what someone says as a litany of things, you mean that you have heard it many times before, and you think it is boring or insincere.
例句
She remained in the doorway, listening to his litany of complaints against her client.
她站在门口，听他喋喋不休地抱怨她的客户。