He is always alert to danger.
他对危险时刻保持警惕。
Always be alert while driving.
驾车时要时刻警惕。
Dogs are always on the alert wherever they go.
无论在什么地方，狗总是处于警觉状态。
Always stay alert and aware of your surroundings.
时刻保持警觉，注意你周围的环境。
They are always on the alert for traffic signals.
他们总是很留心交通信号。
Strengthening training, always being on the alert.
加强训练，常备不懈。
She was always on the alert for some new calamities.
她总是保持警觉以防某种新的灾难。
Her fears had always been on the alert for an upheaval.
她日夜提心吊胆, 严防突变。
Always alert and for the ladies your handbag! Take care!
这是一个提醒大家的警告，有拿包包的女士们，要小心谨慎!
Please always be alert when you are walking around town.
请你在出门时要格。
Always remember that any alarm will be treated as a real alert.
永远牢记任何一次火警都当作是一次真实报警。
In our reading we should always be alert for idiomatic expressions.
我们在阅读过程中应经常注意惯用法。
Always alert to potential attacks and thwart them before they happen.
时刻警惕可能存在的抨击，先发制人。
I like animals, too, especially leopards. They are always so calm and alert.
我也喜欢动物, 优其是豹, 它们永远都是这么镇静和机警。
Animals of the open plains, they are always alert and on the lookout for danger.
作为草原动物, 它们始终保持警戒, 注意危险。
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