The iraqi military keeps a vigilant eye on the river .
伊拉克军方因此对河面情况保持高度警觉。
People are vigilant on issues that interest them .
人们在其感兴趣的事情上是警惕的。
In beijing , we will be more vigilant than ever .
今年的北京奥运会,我们将比以往更加警醒这个问题。
The temptation to surrender control to machines that are smarter , more vigilant and less prone to boredom , irritation and emotional outbursts than people will be overwhelming .
引诱人类把控制权交给比人类更聪明、更机警并且更不容易生厌、恼怒和情感迸发的机器,将势不可挡。
Another important aspect of being a good neighbor is to be vigilant .