on guard
英 [ɔn ɡɑ:d] 美 [ɑn ɡɑrd]

释义

站岗；警惕；防备…；

英英释义

on guard

• adj.vigilant

  同义词：on one's guard(p)upon one's guard(p)on your guard

双语例句

1. He reported the murder to the police on duty.
   他将凶杀事件告知值班警察。
2. There was no fireman on when the fire broke out.
   火灾发生时没有消防队员在值班。
3. Keep a vigilant eye on the imperialist jackals.
   对帝国主义的走狗要保持警戒。
4. Put none but Americans on guard tonight.
   今夜只让美国人担任警戒。

权威例句

On Guard.
On guard
ON GUARD
On guard—activating NK cell receptors
On guard|[mdash]|activating NK cell receptors
Bcl-2 family on guard at the ER.
Bcl-2 family on guard at the ER
On guard vehicle safety warning system
Plant Adaptation to Fluctuating Environment and Biomass Production Are Strongly Dependent on Guard Cell Potassium Channels
Ultrastructural and histochemical studies on guard cells
Anti-apoptotic proteins on guard of melanoma cell survival
Effects of cytosolic calcium and limited, possible dual, effects of G protein modulators on guard cell inward potassium channels
OnGuard, a computational platform for quantitative kinetic modeling of guard cell physiology.