Believe me, she's not right for you. 相信我,她不适合你。 Don't believe a word of it (= don't believe any part of what sb is saying) . 一点也不要相信那些话。 People used to believe (that) the earth was flat. 人们一度认为地球是平的。 He refused to believe (that) his son was involved in drugs. 他不愿相信他的儿子沾染毒品。 More @Wikipedia
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