As a parent, you can play a helpful role in assisting your child search for jobs.

作为父母，在子女找工作中，你可以起到很有帮助的辅助作用。

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Role-play is helpful in developing communication skills.

角色扮演有助于提高沟通技巧。

《牛津词典》

The role metaphor has proven to be very helpful in this context, bringing chaos to order.

角色这个比喻在此上下文中已经证明是非常有用的，它使混乱变得有序。

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It played a helpful role in securing these groups' agreement to take part in the interim administration.

ECONOMIST: Great Satan v axis of evil | The

The government has taken some constructive steps, including playing a helpful role in restoring calm, allowing humanitarian access to the many of the affected areas, and making a clear pledge to bring instigators of the violence to justice.

WHITEHOUSE: The White House

George Mitchell, former Democratic Senate majority leader and U.S. special envoy to Northern Ireland, told CNN that while Clinton was not directly involved in negotiations, she did play a helpful role in bringing in women's groups that made a difference.

CNN: Obama wins tight Democratic race