on guard against

双语例句

用作形容词(adj.)

1. The dog kept a vigilant guard over the house.
   这只狗警惕地守护着这所房屋。
2. We must be on guard against hidden enemies.
   我们必须警惕暗藏的敌人。

权威例句

A safer stem cell: on guard against cancer
On guard against antituberculosis drugs cause the abnormality of hematological system
On guard against workplace hazards
On Guard against the Invasion of an Alien Species,the Red Palm Weevil Rhynchophorus ferrugineus
Be on Guard Against the Invasion of an Alien Species, the Asiatic palm weevil Rhabdoscelus lineaticollis(Heller) (Coleoptera : Curcu...
On Guard against an Alien Invasion
On guard against a major killer
On Guard Against Overload and Extra-exploitation of City, to Construct More Green Land in City Center
Be on Guard against American"Culture Invasion"Policy during Economical Globalization
High Performance Nonwovens Mask Can Be on Guard Against SARS Effectively