| 例句 |
We must be on the alert to discharge our responsibilities toward the friendly countries.我们必须随时准备履行我们对友好国家的责任。Staff have been warned to be on the alert for bombs.已提醒员工要警惕炸弹。They want to be on the alert for similar buying opportunities.他们希望及时关注到类似的购买机会。Prepare for action and be on the alert.准备行动，保持警惕。When you're driving in winter you should always be on the alert for icy conditions.冬天驾车时你应该时刻警惕出现路面结冰的情况。The soldiers need to be on the alert at all times.士兵们需要时刻保持警惕。You should always be on the alert for anyone who looks suspicious.你们应该时刻密切注意形迹可疑的人。We ask you all to be on the alert and to report anything suspicious immediately.我们希望大家保持警惕，发现可疑情况立即报告。 |