Therefore, exactitude analysis reason, practical take into prevention and cure very necessity, very urgent.

因此，正确分析原因、切实加以防治十分必要，十分迫切。

youdao

Therefore, exactitude analysis reason, practical take into prevention and cure very necessity, very urgent.

因此，正确分析原因、切实加以防治十分必要，十分迫切。

youdao