33 Be on guard! Be alert! You do not know when that time will come.

33 你们谨慎、儆醒祈祷、为你们不晓得那日期几时来到。

George was on guard at the front gate last night.

乔治昨晚在大门口守卫。

Like other animals, we are on guard until we know it is safe to relax.

跟动物一样，我们会保持警觉直至知道安全的时候才放松。

And today, NATO countries are on guard against moves by Russia.

今天，北约国家对俄罗斯的行动保持警惕。

African Union soldiers are on guard near the line.

非盟的士兵在队伍附近守卫。

So, penguin parents must always be on guard.

此，企鹅父母必须时刻保持警惕。

Major ports on India's east coast are on guard against an incoming storm.

印度东海岸的主港口对即将到来的风暴保持警惕。

Be on guard for symptoms such as chest congestion, extreme cough or pain in the stomach.

如果出现胸闷、严重咳嗽或胃部疼痛等症状，那就需警惕了。

A soldier was on guard in front of the house in which the general was living.

将军的住所前有一个站岗士兵。

But be on guard for symptoms.

但症状 。

Paranoid? I'm not paranoid! I'm cautious! You see Dan, we have to be on guard at all time!

偏执？我不是偏执！我是谨慎！丹，你知道，我们必须永远保持警惕！

So the U.S. government warned Americans to be on guard concerning the stories they read on e-mail and social media.

所以美国政府警示美国人民，警惕在电子邮件和社交媒体上看到的信息。

We should, therefore, be on guard – be careful and alert about the accuracy of what we are being told.

此，我们应该保持警惕——对我们被告知的内容的准确性保持谨慎和警觉。

But at the outset it seemed necessary to be on guard against the other two.

但一开始似乎有必提防另外两人。

" Jack was on guard, " Ma said gently.

“杰克在放哨，”母亲温柔地说。

Soldiers from the two countries have been on guard for several weeks.

两国士兵已经戒备数周。

She says, however, that she has to be on guard all the time.

她说，然而，她必须时刻保持警惕。

The Bulldogs are on guard in Berwyn, Pennsylvania.

巴尔温的宾夕法尼亚州，斗牛犬们正在警戒。

So you have to be on guard for that kind of thing.

所以你得对这种事保持警惕。

It's almost like he was on guard doing noble work.

他几乎像是在警戒中做着高尚的工作。