1. People are vigilant on issues that interest them. 人们在其感兴趣的事情上是警惕的。
2. The laws aid those who are vigilant, not those who sleep upon their rights. 法律帮助那些时刻警觉的人,而不是那些躺在权利上睡大觉的人。
3. However, health officials around the world warned the virus is still spreading and everyone needs to remain vigilant. 然而,世界各地的卫生官员还是警告说病毒尚在传播,每个人仍需要保持警惕。
英英解释
adj.
1. carefully observant or attentive; on the lookout for possible danger