He planned to lead the conversation and keep Matt from changing the subject.他打算控制谈话局面,不让马特转换话题。He's prone to flit between subjects with amazing ease.他往往会轻松自如地转换话题。Let me point out a few things before we switch topics.在我们转换话题前,请让我说几件事。I tried to change the subject, but I couldn't get her off it.我设法转换话题,但却无法打断她。