1.
We keep high vigilance.
我们保持高度警惕性。
2.
Market at turning point to all appearance some comment even highly alarming
市场行情正处于转折点，众说纷云，有的甚至保持高度警惕。
3.
We have always kept high vigilance against the "Taiwan independence" activities carried out by separatist forces in Taiwan.
我们对台湾分裂势力的“台独”活动始终保持高度警惕。
4.
The software must maintain a vigilant watch for bad data, like a customs official at a border crossing.
软件必须对坏数据保持高度警惕，就好像过境处的海关官员那样。
5.
The film describes the story of the soldiers in the Coast Defense where they keep fully alert, insist on fighting against with enemies and kill all the enemies in our territory.
描写海防民兵不忘记阶级仇恨，保持高度警惕，坚持对敌斗争，歼灭来犯敌特的故事。
6.
We must maintain keen vigilance at all times.
任何时候我们都要保持高度的警惕。
7.
First, we should promote education and maintain sharp vigilance in international trade transactions.
第一，加强教育，在国际贸易中保持高度的警惕性。
8.
The captain was in the porch, keeping himself carefully out of the way of a treacherous shot should any be intended.
船长站在门廊内，保持着高度警惕，以免遭到冷枪的暗算。
9.
They did their best to keep on their guard.
他们尽量保持警惕。
10.
on guard against con artists; must remain on your guard in such a situation.
警惕反对派艺术家；在这种情况下必须保持警惕。
11.
We must keep fully alert.
我们必须高度警惕。
12.
A policeman has to keep on his toes all the time he's on duty.
警察在执勤时必须时刻保持警惕。
13.
Guaranteeing the safety of students requires continued vigilance on the part of teachers.
要确保学生安全，教师得时常保持警惕。
14.
The act or process of keeping awake or mentally alert, especially for the purpose of guarding.
警惕保持清醒或精神上警惕之动作或过程，尤指为保卫的目的
15.
You must stay wide-awake against possible dangers.
你必须保持警惕,防止可能的危险。
16.
But we must remain on the alert.
但是我们现在仍然要保持警惕。
17.
Constant vigilance is necessary in order to avoid accidents.
为了避免意外事故, 必须经常保持警惕。
18.
It is important that health organizations remain watchful.
卫生组织保持警惕是极为重要的。