句子示例
- The security guards remained vigilant throughout the night.保安们整夜保持警惕。
- Parents should be vigilant about their children's online activities.父母应对孩子的网上活动保持警觉。
- The government has called on citizens to stay vigilant against potential terrorist threats.政府呼吁公民对潜在的恐怖威胁保持警惕。
- As a researcher, you must be vigilant in documenting every step of the experiment.作为研究者,你必须谨慎记录实验的每一步。
- The vigilant watchdog barked at the slightest sound.警觉的看门狗一有声响就吠叫。