What is the meaning of "完败"? 客队0比3完败。
客队0比3完败主队。
客队3比0完败主队。
客队以完败收场。
客队0比3完胜了。
客队3比0完败了。
What is the meaning of &quot;完败&quot; in these sentence?
Entirely/completely defeated, without any score.  See, all your examples are nothing to 3, hence, the other (winning) side is 完胜：主队3:0完胜客队。