He often says ridiculous things.
He says strange things a lot.
He says a lot of weird things.
他一点儿责任心都没有。
He has no sense of responsibility.
He's so irresponsible.
他真是个让人讨厌的人。
He's very offensive.
详解：offensive“讨厌的”、“令人不愉快的”、“(人或言行等）令人作呕的”。
他这人很难对付。
He's a difficult man to deal with.
详解：deal with“处理、对待(人或事）”。
He's hard to deal with.
He's hard to put up with.
他让人难以忍受。
他是个倔老头。
He's a stubborn old man.
详解：stubborn“顽固的”、“倔强的”。
Didn't your father say okay?
你爸爸同意了吗?
No, he's a stubborn old man.
没有，他是个倔老头。

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