1. For the reason why optical activity of mesomer is counteracted classical answer was not convincing.
   指出了内消旋体消旋原因传统解释的不合理性。
2. The drug counteracts the effects of the poison.
   这种药可抵消毒物的作用。
3. This drug should counteract the poison.
   这药可消解毒性。
4. The doctor gave him some medicine to counteract the effect of the poison.
   医生给他些药解毒。
5. The contribution of groyne height reduction to counteracting unwanted erosion is then considered a favourable incidental circumstance.
   丁坝降低对减少一些对主槽不利的侵蚀是一项比较可取的措施。
6. At last, it was buffeted by the ruin of Prussian monarchism, then attached itself to the right-wing conservative group, which further led to its incompetence to counteract Nazi's rule.
   最后又因普鲁士君主制度的毁灭而遭到打击，从而走入右翼保守阵营，并进一步导致它对纳粹统治抵制乏力。
7. For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.
   指出了内消旋体消旋原因传统解释的不合理性。利用螺旋理论和稳定的交叉式构象，合理地解释了内消旋体消旋的原因。

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