By extending the courtesy of a phone call to my clients, I was building a personal relationship with them.

通过给客户打电话这样有礼的行为，我渐渐和他们建立起私交。

《柯林斯英汉双解大词典》

Some measures should be taken by both China and Russia, such as establishing a circular mechanism and extending the communication, so as to gain mutual trust and advance the bilateral relationship.

中俄双方应在建立互信机制、推动战略关系等方面，针对双方敏感性问题和具有战略意义的领域，主动提出可行性举措，诸如建立中俄相互通报机制、扩大交流等，以推进双边关系。

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This paper explains the relationship between the narrowing and filling of information gap and the extending and altering of schema knowledge.

本文主要阐释了信息差缩小和填补与图式知识扩展、延伸和改变的相互关联。

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Alpari initially became a sponsor of West Ham in 2011, before extending their relationship to the current level.

BBC: West Ham United sign forex broker Alpari as sponsor

"Starz has been a terrific partner and we are excited to be extending our relationship with them through the 2021 slate, " said John Weiser, President, U.S. distribution for Sony Pictures Television.

ENGADGET: Sony Pictures renews Starz exclusivity agreement, locks in until 2021

"We are delighted to be extending our relationship again with TWC, incorporating the cutting edge and crowd-pleasing movies distributed by RADiUS, " said Netflix chief content officer Ted Sarandos.

ENGADGET: Netflix inks deal with Weinstein Co.-owned Radius-TWC, films coming to watch instantly next year