Recently years many experiments have observed that certain ectogenesis factors play an important role to protect neurons.

近年的很多实验表明：某些外源性因子对保护神经元存活有重要作用。

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Circular polarization microstrip antenna has many excellent properties, which in wireless applications play an important role to play.

圆极化微带天线具有很多优良的特性，因而在无线应用中扮演着十分重要的角色。

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At the same time, all the way Wilson has become the standard operating procedures, the confrontation with the KGB play an important role to play.

与此同时，威尔森的种种方法已经成为标准行动程序，在与克格勃的对峙中发挥起重要作用。

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I think that America has an important role to play to have the standards increased.

我觉得美国在提高标准方面扮演着重要的角色。

爱护小朋友 - SpeakingMax英语口语达人

Finally, resistance workouts, especially those that include exercises focusing on balance and power, play an important role to increase strength and stability.

FORBES: Why Strength Training May Help You Live Longer

Trees and plants also play an important role to help induce airflow and provide shade on hotter days in courtyards, and water is a common element because it can help cool the air through evaporation and can have a calming effect on the space.

WSJ: Full Enclosure - WSJ Mansion

You need to share the details of how you came to play such an important role to the organization, how budget was allocated elsewhere (perhaps all labor was unpaid or this was an unusual turnaround situation), and why you stayed in a volunteer capacity rather than seek paid work.

FORBES: Can A Volunteer Beat A Paid Professional For A Job?