turn over point

Beat around the bush To approach or discuss something and not get to the point Turn over a new leaf Start fresh He realized he was in the wrong and promised to turn over a new leaf.

beat是“拍打”，bush是“灌木丛”，around和about都是“四周”的意思。掀开新的一页，重新开始，改过自新；重新做人；革面洗心；弃过图新他认识到自己错了，答应改过自新。

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the results are found that there is the turn over point of energy e_m/ p; when lattice energy is larger than the value of the energy heavy atoms in coupled chain stay at their balance positions, while light atoms vibrate;

结果发现，存在能量转变点Em/P，当能量大于此转变点时，耦合原子链中重原子静止在平衡位置，轻原子作热振动；

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