Her teeth had to be crowned with special cement.

她的牙齿不得不镶上特殊的粘固剂。

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Therefore, how to guarantee the quality of the cement has special meanings.

因此，如何保障水泥质量就具有特别重要的意义。

youdao

Therefore, how to guarantee the quality of the cement has special meanings.

因此，如何保障水泥质量就具有特别重要的意义。

youdao