Lack of dynamic process optimization has made it very hard to change a process model on the fly in a production environment.

由于缺少动态流程优化，因此很难动态地更改生产环境中的流程模型。

youdao

Thee road of life, like the wavy curve and each other, although go up very hard, but as long as brave to rush, will fly to succeed.

人生的道路，就像波浪形曲线那样彼此起伏，虽然走起来很辛苦，但只要硬着头皮去闯，最终会飞向成功。

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Butt he also is very hard working, although he is not smart, he listened to his wife. "a foolish bird has to fly first".

不过，他也很努力，虽然他不聪明，但是他听了妻子的话，笨鸟先飞，我想他一定能取得大的成就。

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"We have no money to fly to Europe -- as it's very expensive -- so this makes my job very hard, " he says.

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