English learning is a long period process and get a long time preparation of studying English.

英语学习不是一会儿的功夫，要有长时间学习英语的准备。

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Multi-Period Process Industry Modeling System (PPIMS) can be used in optimized application of limited resources.

多周期线性规划模拟系统（ PP IMS）可解决最大限度地发挥有限资源的最优化问题。

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In America, the period of huge productivity gains in transportation may be almost over, but in most countries the process still has far to go.

在美国，交通运输业生产率大幅提高的时期可能即将结束，但在大多数国家，这一阶段仍有很长的路要走。

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It's also going to be the process of watching an artistic form unfold over a very exciting period of time.

更是一个观察某种艺术形式在一段,刺激的时间里展现的过程。

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So, the process of developing a vaccine occurred over a long period of time.

疫苗的发展经历了很长一段时间

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Monitoring new leads, looking for buying signals, tracking activity and nurturing the buyer through the initial vendor selection and buyer decision process is often a long and unpredictable period of time and process.

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This is the due process period put in place to ensure that the actual reasons behind firing the teacher are legitimate.

FORBES: Firing Teachers with Due Process

District Judge Howard Riddle said for a brief period the trial process had been put in jeopardy and that the prospect of collapse must have been "agonising" for the Lawrences.

BBC: Spectator fined after admitting Stephen Lawrence breach