英文: We should be watchful of computer viruses.
中文: 我们应该警惕计算机病毒。英文: A watchful nurse tending a critically ill patient.
中文: 照顾一个重病号的谨慎的护士英文: Devote yourselves to prayer, being watchful and thankful.
中文: 2你们要恒切祷告,在此儆醒感恩。英文: It is important that health organizations remain watchful .
中文: 卫生组织保持警惕是极为重要的。英文: The guard should be watchful during the night.
中文: 警卫在黑夜里也应该警醒。