首相在担任牛津大学布灵顿俱乐部成员期间，一张身穿燕尾服的照片却在2007年从公共视野中神秘消失了。

A picture of the future prime minister in tails, while a member of Oxford University's Bullingdon Club, was mysteriously withdrawn from public view in 2007.

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前央视主持人张泉灵，目前已经成为风险投资公司紫牛基金的合伙人，她说时机对网红来说很重要。

Zhang Quanling, a former hostess at China Central Television and a partner of venture capital firm Zijiu Foundation, said that timing is important for a web star.

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苏晓明，张庆灵，广义周期时变系统，科学出版社，2006。

Xiaoming SU, Qingling Zhang, Periodic Time Varying Descriptor Systems, Science Press, 2006.

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