起作用

The formal and contentless structure of the system of rhetoric serves a function, in this historical adaptation of its theory, almost identical to the function served by loci, places, within most systems of rhetoric.

修辞系统结构的形式及其缺乏内容，在对其原理的历史性调整中所起的作用，几乎可以等同于在大多数修辞系统中各种处境所起的作用。

It has been found that ectogenic GDNF has nervous protective effec,but ectogenic GDNF cannot enter blood brain barrier.

传统观点认为，星形胶质细胞是神经系统的支持细胞，构成神经组织的网架而起支持作用，与神经元的解剖位置关系紧密，参与中枢神经系统的免疫反应，参与构成血脑屏障，目前研究发现，脑缺血时星形胶质细胞异常活跃，通过合成多种蛋白质、细胞因子和神经营养因子等对神经元起保护作用，对缺血性脑损伤的发展和转归具有重要意义。

Interactions within the rhizosphere are based on complex exchanges involving surrounding plant roots and are highly influenced by edaphic factors.

越来越多的试验表明，根分泌物在根与根、根与根际微生物间起着重要作用，并以其为媒介在植物与环境的相互作用中起着传递信息的作用。

The former is necessary for equilibrium-controlled synthesis of peptide bonds while the latter is necessary for kinetically controlled synthesis of peptide bonds.

酰胺酶活性起水解或合成肽键的作用，因而对平衡控制的肽键合成是必需的；酯酶活性起转移酰基的作用，因而对动力学控制的肽键合成是必需的。

Mentary school;(2)The more parental verbal, physical and emotional conflict, and the more of represented aca?鄄demic problem and problem behavior. Verbal conflict significantly predicted academic problem; Physical conflict significantly predicted depression and problem behavior; Parental conflict related to children significantly negative?鄄ly predicted problem behavior;(3)Children′s cognitive appraisals is a mediator between the relation of parental conflict and children′s internal adjustment, but children′s cognitive appraisals isn′t a mediator between the rela?鄄tion of parental conflict and children′s external adjustment.

结果发现：（1）男女生除在父母情绪冲突和自尊方面的报告有显著差异外，其余各个方面都没有显著差异；随年级升高，儿童知觉的父母冲突内容显著增多，抑郁情绪、学习问题显著增多，而自尊水平显著下降；（2）父母冲突的不同形式和内容，以及青少年对父母冲突的不同认知评价可以预测青少年不同方面的社会适应；（3）认知评价在父母冲突与青少年的内部适应中起中介作用，但在父母冲突与青少年的外部适应中不起中介作用。

Provided that the acceptance of rent or mesne profits by the Landlord after the expiration of the term of the tenancy hereby created shall not be deemed to operate as a waiver or breach of any of the terms hereof nor as a new periodic tenancy by way of holding over or otherwise.

如在本合约规定的租期届满后业主接受租金或中间收益，不应被认为是起了放弃或违背本合约的任何条件的作用，也不应认为是起了作为继续租用或者其他的新租期的作用。

Provided that the acceptance of rent or mesne profits by the Landlord after the expiration of the term of the tenancy hereby created shall not be deemed to operate as a waiver or breach of any of the terms hereof nor as a new periodic tenancy by way of holding over or otherwise.

倘若在本合约规定的租期届满后业主接受租金或中间收益，不应被认为是起了放弃或违背本合约的任何条件的作用，也不应认为是起了作为继续租用或者其他的新租期的作用。

20 Provided that the acceptance of rent or mesne profits by the Landlord after the expiration of the term of the tenancy hereby created shall not be deemed to operate as a waiver or breach of any of the terms hereof nor as a new periodic tenancy by way of holding over or otherwise.

倘若在本合约规定的租期届满后业主接受租金或中间收益﹐不应被认为是起了放弃或违背本合约的任何条件的作用﹐也不应认为是起了作为继续租用或其它的新租期的作用。

Provided that the accetance of rent or mesne profits by the Landlord after the expiration of the term of the tenancy hereby created shall not be deemed to operate as a waiver or breach of any of the terms hereof nor as a new periodic tenancy by way of holding over or otherwise.

倘若在本合约规定的租期届满后业主接受租金或中间收益，不应被认为是起了放弃或违背本合约的任何条件的作用，也不应认为是起了作为继续租用或者其他的新租期的作用。

In this article, the author analyzes metaphor and metonymy comparatively and points out their respective roles in the semantic extension of a word: Metaphorical thinking and metonymical thinking are two important processes leading to semantic extension, but metaphorical thinking is more important in this respect.

本文通过对比研究，指出隐喻和转喻在词义延伸中所起的作用：隐喻和转喻思维使词义延伸成为可能，而隐喻思维在词义延伸中所起的作用更大。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。