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					But convincing open-minded dairy people is actually not that hard, when you look at the economics. 2019年12月六级真题(第三套)阅读 Section B
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					To her, it meant moving confidently around the court room, using convincing body language, and projecting her voice so it could be heard from the judge's bench to the back door. 2017年6月六级真题(第二套)听力 Section B
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					We need more scientists who can explain what they are doing in language that is convincing and understandable to the public. 2016年12月六级真题(第二套)阅读 Section A