通过研究分析，得出如下结论：1王励勤发抢段得分率较高，但使用率比较低。

Through research and analysis, draw the following conclusions:1 Wang Liqin's serve and attack at a higher scoring percentage, but the usage is relatively low.

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首先，业精于勤，无论是发球，还是接发——任何一分，都来之不易，哪怕你的位置极具进攻性。

First, it makes players work hard, both on their serve and return games-points aren't that easy to finish, even from an attacking position.

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注意口腔卫生和做好口腔护理，餐后一定要用牙签将食物残渣清除，并勤漱口，减少龋齿和口腔继发感染。

Pay attention to oral hygiene and good oral care, postprandial must use toothpicks to remove food residue, and ground mouthwash, dental caries and oral reduce secondary infection.

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