But be on guard for symptoms.

但要注意症状 。

African Union soldiers are on guard near the line.

非盟的士兵在队伍附近守卫。

George was on guard at the front gate last night.

乔治昨晚在大门口守卫。

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。

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

印度东海岸的主要港口对即将到来的风暴保持警惕。

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

33 你们要谨慎、儆醒祈祷、因为你们不晓得那日期几时来到。

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。

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，那就需要警惕了。

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。

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！

" Jack was on guard, " Ma said gently.

“杰克提防着，”妈妈温和地说。

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

因此，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。

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，要警惕在电子邮件和社交媒体上看到的信息。

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.

然而，她说，她必须时刻保持警惕。

Who was on guard the night the fire broke out?

【guard】火灾发生那晚是谁在执勤？

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

但一开始似乎有必要提防另外两人。

Millions of people in Africa are on guard against violence and threats of violence by extremists.

数以百万计的非洲人正在警惕极端分子的暴力和暴力威胁。

Cybersecurity specialists are also expected to be on guard against the hacking of computerized election systems in some states, including Colorado.

预计网络安全专家也将保持警惕，防范科罗拉多等州的计算机选举系统遭到黑客攻击。

I'm not suggesting you should act on your own self-interest, but be on guard, be agnostic.

我不是建议你应该根据自己的利益行事， 而是要保持警惕， 保持不可知论。