Harbin-born Li has a clear and smooth voice, which he inherited from his Peking Opera singer father.

李健出生于哈尔滨，从京剧演员父亲那里继承了一副干净、悦耳的嗓音。

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They like to hear the music of a smooth voice and so on.

婴儿们喜欢听到拥有平缓声音的音乐等等

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His buttery smooth TV baritone voice comes by way of his nightly dip into Cuban cigars.

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It's sort of this velvety, smooth, world-weary voice that seems to be untouched by time.

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His surface is so smooth, his movements so easy and fluid, his voice so consistent and well-pitched that he can seem like an actor playing a politician, too implausibly effortless to be doing it for real.

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