In the paper, synthesis and development of the compounds are summarized respectively from three main angles including synthesis of central bond, skeleton and substitute group.

文中就目前已报道的化合物，从中心桥键、端基及中心骨架构成的角度对该类液晶的合成进行了综合论述。

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Of course, you can always add Tofurkey (turkey-flavored tofu) or another meat substitute for the non-carnivores and turkey-pardoners of the group.

当然，还有豆腐鸡（火鸡味儿的豆腐）或者其他的肉类替代品可以选择，不吃肉的朋友们也有口福啦。

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Two outstanding late saves, followed by a glaring miss from the substitute Nolito, contributed greatly to an important point against arguably United's closest rivals in Group C.

在阻止了替补出场的诺里托精彩的射门后，在接近比赛尾声时的两次精彩扑救为曼联无可争议的从C组最大竞争对手身上拿到了客场宝贵的一分。

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As the clock ticked down it seemed as though the momentum of the contest had swung firmly in the favour of the green and gold but their hopes of emulating their exploits in 2006 by progressing from their group were effectively ended when substitute Marko Pantelic pulled a goal back for Serbia after 84 minutes.

BBC: Australia 2-1 Serbia

KCR, a research firm, has found that in America far more 18- to 34-year-olds than any other age group say socialising online is a substitute for some car trips.

ECONOMIST: The future of driving

Alvaro Negredo, who had played just 30 minutes at the tournament as a substitute in Spain's 1-0 group-stage win over Croatia, did little to justify Del Bosque's surprise decision to name him to the starting lineup.

WSJ: Euro 2012: Spain Beats Portugal on Penalty Kicks, Stands One Win From Immortality