There were 7 failures, all in the mandible and before stage 2 surgery.

有7次是失败的，所有发生在下颚且于手术阶段2之前。

youdao

There were 7 failures, all in the mandible and before stage 2 surgery.

有7次是失败的，所有发生在下颚且于手术阶段2之前。

youdao