n.[U]

1. 战争；交战状态
   The gesture was equivalent to a flag of truce in civilized warfare.

   这个手势相当于文明战争中的停战旗。

   the science of warfare

   军事科学

2. 冲突；斗争；竞争
   wage warfare with natural calamities

   与自然灾害作斗争

   He watched the canine warfare with the deepest interest.

   他极有兴趣地观看斗狗。

n.