Chelsea goalkeeper Petr Cech admits the club's pre-season tour of Asia will be tough for the Blues but hopes the experience of having done it before will stand them in good stead.

切尔西门将切赫承认球队的亚洲行将会是艰苦的，他希望之前的成功经验可以帮助到他们。

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Because of the early experience with pre-release versions of the framework, we learned some important lessons on how to be successful using it.

在框架正式发布前，我们就积累了一些使用经验，并在如何正确使用这个框架上学到了很多。

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Establish a therapeutic sera pre-qualification scheme based on WHO experience in pre-qualification of other therapeutic products;

以世卫组织在其它治疗产品资格预审方面的经验为基础，建立治疗血清资格预审办法；

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Although a relatively new act, Marble Fairy boast some pre-existing local music experience.

BBC: Cornwall - BBC Introducing - Marble Fairy

Not gentle humor, but all-out comedy or satire that casts the whole experience and habitat of pre-adults as both ludicrous and avoidable.

CNN: The novel America needs in 2013

Five senior officials of the Federal Ministry of Information sponsored to the United States of America for training in the implementation of the FOIA will share their experience at the pre-workshop session.

UNESCO: Detailview | United Nations Educational, Scientific and Cultural Organization