Mark Twain is quoted to show that the disapproval of smiles in pictures was a deep-rooted belief.

文章引用马克·吐温的话表明，表明在照相时不愿微笑是源于一种根深蒂固的信念。

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And many share the desire to reassert Russia's greatness-and a deep-rooted belief that the West is Russia's natural enemy.

此外，还有许多人也渴望重新彰显俄罗斯的强大国力——他们也根深蒂固地相信西方是俄国的天然敌人。

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But it would have been impossible for me to fight at all, except that I was sustained by the personal and deep-rooted belief that my fight had a chance.

然而，如果不是我内心深处坚信我的奋斗有希望，我就根本无法坚持。

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Mr Kenny said the motion reflected his deep-rooted belief that Brian Cowen should have sought a mandate from the people when he was appointed Taoiseach.

BBC: No confidence motion before Dail