但是，我有充分的理由相信他，他一定感受到了春天的美好！
But, I have every reason to believe that he is, he must feel the beautiful spring!
我有充分的理由相信，更健康的饮食习惯可以增加你成功的机会。
I think there's good reason to believe that eating healthier foods will increase your chance of success.
我无从核实这些数字。但是我有充分的理由相信，这不是言过其实的。
I have no way of checking these figures, but I have every reason to believe they are not exaggerated.
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