• Professor Bruix: It has been difficult because before there was nothing that was effective. Everything was non-effective everywhere.

    之所以困难是因为之前没有任何有效的治疗。

    youdao

  • Professor Bruix: It has been difficult because before there was nothing that was effective. Everything was non-effective everywhere.

    之所以困难是因为之前没有任何有效的治疗。

    youdao

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