be on guard with中文什么意思

警戒

• guard:    n. 1.警卫；警戒；看守。 2.防 ...
• be on guard:    警惕
• no guard:    无防备

例句与用法

1. The good work can certainly relieve the tedium of people to advertise height of be on guard with hundred percently
   好作品一定能够解除人们对广告高度的戒备与十足的厌烦！