The plane made a smooth landing.

飞机平稳降落。

《牛津词典》

We need to ensure a smooth transition between the old system and the new one.

我们得确保新旧制度间的平稳过渡。

《牛津词典》

He's something of a smooth operator.

可以说，他是一个八面玲珑的滑头。

《牛津词典》

The drink is made by combining different fruits into a smooth and tasty thick liquid.

VOA: special.2009.10.02

You could take a continuous path, where you have an infinite equilibrium points in between the two, a smooth path, whereyoudrop pressureand temperature simultaneosly in little increments.

你可以选择光滑的连续路径，在初末态间有,无数个平衡态的点，压强和温度同时一点,一点地下降。

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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

耶鲁公开课 - 心理学导论课程节选

"We've also had a smooth run with no reliability issues in races, " he added.

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Henderson's group has been working on a smooth digital transition for poor people and minorities.

NPR: Early Switch To Digital Has Viewers Seeking Help

Precise tuning between the speaker drivers ensures a smooth transition between low- to mid- and high-frequencies.

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